Does Roshni know...?

There was this scene where Ahaana tells anant that she was pregnant and she aborted the baby as Anant had told her that she wasn"t going to be a good mom..Rehaan overhears their convo and then realises what Ahaana went thru and feels guilty for her..when Rosh tells him that he is favoring Ahaana, he doesnt tell her the truth or did I miss anything? Rosh is very conveniently blaming ahaana for ignoring her mom"s condition in the hospital and going on a vacation with Rehaan..but she never mentioned about the baby.

I guess she doesnt know ? What do others say ?

Roshini only knows about ahana's reason for getting married to ahant and that ahana didnt sent those videos of hers.