I'm going to preface this post with the disclaimer that this may just be a pipe dream and may never actually happen but…
After looking at the episode yesterday and the precap (still have the chills from that) I do believe that Purvi will finally accept Arjun and claim him as her own.
My basis for this goes back to the initial temple scene where Purvi asks Shivji for a life partner who will be just like him, someone who will be loyal to her and only her.
When Arjun was knocked off course with the 'surprise engagement' (a.k.a. the train wreck) she was hoping that he would tell them then about their relationship even after knowing who Ovi was and all the other little things she figured out for herself.
She's always been after Arjun to stand up for them and fight for her (put in her own words of course) and he's always come back with the 'excuse' that he didn't want to hurt Ovi's feelings. To her, Arjun had always placed Ovi's feelings above her own.
When Purvi comes to know about his revelation I think she will hands down, whole heartedly accept him because now he would have done what she wanted him to do in the first place – fight for her and for their love.
How they end up in the park remains to be seen.
Does she hear/overhear Sulochana talk about it with Archana?
Does Archana come to the house?
Does one of the Deshmucks call her to harass her?
Does DK have a hand in this?
Does Arjun call her to tell her what's coming?
This is what the romantic in me wants… 😍
I, again, maybe way out in left field with this but I think Purvi might have been the one to ask for the meeting after she learns about his confession. She realizes that he wants her above all else and has staked his claim in front of their world. She now in response will go to him to calm his fears, fall into his arms and say, "You are mine, Arjun!" ❤️
If only… 😍