Abhira is constantly screamed at by Ruhi. Let's take out our annoyance on Ruhi here.
I will try to put down as many as of Ruhi's shameless antics here. Please add whatever you remember as well.
1. Ruhi is so shameless she is such a peeping tom. She keeps peeping into Abhira's room, overhearing Abhira and her husband's conversations.
2. Ruhi's obsession with her husband's brother, who is now married to Abhira. Always trying to get close to him, trying to get physically close to him by hugging him, holding his hands etc.(it is not even an innocent hug/touch among friends). She is madly in love with him, so her touching of Armaan is so corrupted.
3. Ruhi is so spineless. She convinced Abhira and took Abhira's responsibility of dadi sa's room. And completely forgot about it because she was lusting over Abhira's husband. And when things got stolen didn't even have the spine to open her mouth and she let Abhira get scolded and punished for Ruhi's mistake. Again, when there was a marriage proposal for her, she didn't want to see the guy herself and relied on Armaan instead of opening her mouth (which only work when she has to accuse or shout at Abhira) and telling dadi sa she is not willing to marry him
4. Asked Armaan to abandon his wife (who doesn't have anyone else) so that she can live with Armaan under the same roof.
5. Always interfering in Abhira's life. After screaming at Abhira not to interfere in her life, Ruhi keeps interfering in Abhira's life.
6. Attention-seeking behaviour and self-obsession - Everything always has to be about her. When Abhira was thinking about Madhav-Vidya as a couple and how to do something for them, Ruhi was so obsessed about the surprise party she planned. For Saraswati Puja, she wanted Armaan (Abhira's husband) to celebrate valentine's day with her and not help his wife for Saraswati Pooja.
7. Jealous - Ruhi is so jealous of Abhira, that she always screams at Abhira, accusing and lying about Abhira about things she has no idea about (eg: Sanjay hitting Krish).
8. Biggest Hypocrite - Always interferes in Abhira's life and screams at her. Calls her fatherless and her not having family in a derogatory manner, but when Abhira answers on the same manner, gets upset. Ruhi is like a child, she wants everyone to dance according to her tunes, or she will throw tantrums. She and her great-grandmothers harassed and burnt Abhira's assignments and documents. When Armaan reprimanded them she got upset and screamed at Armaan. She also left home because Armaan pointed at her mistakes and took Abhira's side. And shamelessly told Armaan, if she has to come back, he has to promise irrespective of her being right or wrong, he will take her side against everyone else.
9. Self-obsessed to the core: She hates her Akshara maasi since childhood. She has grown up and not yet maturely looked at the situation. She says she gave her everything to them and her love is not enough, when she doesn't even bother to come stay with them. Even after losing her one-month-old husband who she didn't love and got enough time to grieve about. And let's not fool ourselves that she is still staying in her in-law's place to honour her husband. We all know she is still staying there to be close to her dead husband's brother (Abhira's husband). So her shameful want of her husband's brother is more important to her than her own family. But she also wouldn't let her great-grandparents get in touch with their granddaughter in old age.
10. Tantrum-throwing drama queen: How she barged into a room, and broke someone else's property - Abhira's mom's photo.
These are the few things I remember. If you remember more, please add.
edited for adding disclaimer to exclude fans, against the rules
apparently only because of Akshara Massi!!
Life is so beautiful to be wasted like this. 
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