This could be bit long post but by following past episodes of Arulie , especially when I'm watching Aryan , I thought to open a new thread and whatever I have felt I'm mentioning below.
Aryan unconsciously got attracted and started to fall for Imlie but consciously he thinks he is just supporting and sympathizing with Imlie as he finds Imlie as well present in his BIL position and for both the incidents being connected to Adi(though he misunderstood about his BIL mishap but he is still believing it and in Imlie case he understood the entire story even about JM night as well😂) he couldn't watch the same injustice happen again with Imlie. Yes you were correct in pointing it out that he is in grief for losing his BIL and at the same time he is feeling guilty that he was unable to protect his BIL. Hence his protectiveness towards Imlie was significantly more.
I think his first impression on Imlie as notorious one (as she did cute mudspa to his car)and the same impression continued when he lifted her out of car . He got attracted to her when she wrote that article where he slightly smiled after she left and continued to read the article. He found it worthy and to praise her work made a big photocopy of it. Point to be noted is that he thinks he likes her work and he didn't know that he got attracted towards Imlie.
He unconsiously started to give respect and value to her words and this could be seen while he is taking aarti , while remembering her words to go home when she said he is lucky to have got family.
When Aryan found Imlie sleeping in ofc he got sympathized but as soon as he remember her as Adi's wife he arrogantly behaved but immediately after he came to his senses he went after her where he saw few molesters hence protected her as he understood that he dropped Imlie in that situation. He got sympathized with her situation and offered shelter also when he came to know how much she gives value to her self respect he immediately made that rent agreement (bit smart I say
).
His attraction and concern towards her kept increasing since that day and we could see these changes in him during his conversation when his mother asked whether he liked any girl or even during the party when some random girl took out Imlie's name wrongly he immediately made her correct , even noodles seekhana scene as well as he didn't want anyone to insult her and even when he saw her sad before anniversary day he didn't say a word to her but asked her if she could attend meeting. He thinks all this as sympathy towards Imlie and thus he wants her to stand on her own.
After he saw the complete breakdown of Imlie for Adi he gave emotional support to Imlie and encouraged her to move on from her pain by letting go off the past but the point to be noted is he even got emotional as he is also in the pain and showed out his pain before her which he never confessed before anyone. 
I took this start for Asr falling for Imlie.
On the same day his concern as well started as he felt bit restless /irritated when he didn't find Imlie after meeting and when he saw her breakingdown again on the same day and found the cause he was along with Imlie all the night and saw her crying , he felt the pain of her as his pain and thus became more protective towards her. Hence he turned up as well to protect Imlie when she went to T house. This was the first time I felt he unconsciously slowly blurring the lines in their friendly relation in his instinct to protect Imlie. Again makers proved him right that he needs to standby Imlie as he is the one who holded her and again morally supported her all the while in the scene as no T member atleast turned up to her after Adi left. Don't know what kind of family it is and what sort of ppl they were as everyone left after Adi. That is day I think he considered Imlie as bit apna and he doesn't want anyone to do wrong with Imlie. He even avenged revenge on Adi for Imlie behalf as well🤣
Banda totally getting flat without his knowledge
Aryan today showed much protectiveness towards Imlie by himself stepping into T house. Initially he had no plan to go with Imlie and ignored Malini call but just a thought of Imlie again falling week has made him to change his decision. Also while Imlie having conversation with Malini he came behind her as he knows about Malini wrath on Imlie. When he saw Imlie again in pain while Adini dance he immediately took her away and now he is unable to see her in pain Unconsciously he is falling more and more for Imlie but consciously thinking that he was just supporting her (as he thinks her life getting spoiled by Adi which he doesn't want to see )and today he considerd himself as friend of her by saying today's dialogue to Adi 'mere jaise dosth' ....😄
Even Imlie yesterday called him Aru , taunted him as kadva kaada , and today's dialogue 'tum yaha kaahe aye ho' .. She never comfortably stated Adi as 'tum'🤣 Here Asr tho boss but phir bhi she stated him 'tum'. 😂
We all know Adilie as endgame. I don't like clinche scenes but the aspects like respect , care , support , motivation , comfort in Arulie relationship making it look best 
I see all these lacking in Adilie relationship and I know it has left only with chemistry along with complexity and adultary relationship with didi , lack of trust , insecurities , faltu tadap and most importantly 'hum aapse/tumse pyaar karte hain' dialogue by both of them Seriously I understood both don't even know the true meaning of love.😏
I seriously don't want Aryan to have any heartbreak
It would be better if his character is always kept positive and whenever his character butchering starts I want FK to leave the show as I seriously got attracted towards his character.
Girlz plz let me know ur thoughts and put forward anything which you would like to mention..❤️
Shiv Shakti
