@Greywolf,
3 months is a way over-reaction to what you describe. Things to consider:
- have you described what you did accurately?
- are there religious motivations involved?
- does she have trust issues? (beyond the normal)
- how was your marriage going beforehand, from her perspective?
- are you sure she hasn't been looking for a reason not to be intimate with you?
- have you asked her what path the two of you need to take to get your marriage back on track?
- have you gone to counselling?