Responses

No, :)
I dont think Bomi is using hobin. she even helped hobin's mother by getting the best doctor. and she doesn't flaunt to hobin how rich she is. she actually owns the hospital. but she did not tell that to hobin because she did not wanted him to feel bad. she was even ready to pay for hobin's mother medical fee. without hobin knowing. she doesn't want him to hurt his feelings or respect.
but yes, I do understand your concern.
I think someone was watching Bomi and Hombin talk. and the dialogue "this bastard is definitely boasting... i want to beat him up" these dialogues does not belong to bomi. why ?
1) they were not inside the inner dialogue bubble.
2) look at the scenes again. it kind of feels as if someone was watching them.
3) I feel the author is purposefully ttying to confuse us.