If you think, you have taken a right decision, time will resolve all your matters. Some decisions are hard to take, gives lot of pain. But it takes you to right path. I feel in your case, the emotions are triggered to peak, causing you pain (even for her) which you would have not thought about when you started this relationship. Emotions are evident in fear of losing something or gaining something or expecting something. Controlling emotions for timebeing is what you both need to do. When time passes, you both will be ok. Focus on other sides of life. Do meditation. Cheers.

May all beings in the world be happy
Gnanesh.