My question is when a 20 year old ex sent me an email I'm the most unresolved issue in his life. We started communicating for 3 weeks w no hint he has a girlfriend. I asked him yesterday and he said 'yes'. he is with someone. I emailed him back he needed to be truthful w me at the beginning and his excuse is: "you should have asked?" I'm having a difficult time as he thinks not telling me was ok and I don't. I now don't trust him. My feeling is to end our communication?