You married her because you made her stop talking to her parents
She's probably held on to that thru your whole marriage--shes probably thought how could you control her this way. Maybe she's really wanted to be with her parents or talk to them and you wouldn't let her
You should be the one to feel bad.
She shouldn't have to ask for the divorce she shouldn't have married you in the first place...marriage isnt about controlling someone and making them not talk to their parents.
Maybe this would be a good time to make things right and tell her you want to change you encourage her to get in contact with her parents--regardless of whatever happened between you and the parents or her and the parents to block this communication...you need to fix that! YOU.
She's been going around under your control no wonder she feels like shes TRAPPED and unhappy
I hope you get some professional help....or spiritual help.