I did try to look at it from her side, and i do not understand it still. If she wanted to be in touch with her ex-boyfriends as friends, i would not mind at all as long as it had been communicated that there isn't any interest romantically to them, and that i really knew that she loved me.

I wouldn't mind if she had friends from dating site either. Sometimes you meet someone and there isn't any interest at all, but what i tried to do is really show her at all points how much i appreciated her, but she refused to be introduced to anyone but my family. So i was puzzled.