From experience I know this: if you have a problem 99% of people in your life don't want to hear it and don't care. This includes people you might consider your friends. If you're having mental health concerns, that same number of people will try to help you. The 1% of people who will help you and care are very hard to find, and the majority of those people will have no idea how to help and will become easily overwhelmed. I know that sounds harsh, but it is the truth.

Next... I know you love this guy but let's look at what you've said. Most dates were at the bar near his house or watching him play video games. Did you ever play with him or were invited to play? Or were you just a fixture, sitting there while he plays? Also, which games(type)? (Yes, that is important.) And while playing did he have a headset on so that he could talk to the people in the game while you sat there watching? Or was he playing and interacting with you at the same time.

Another thing: girl roommate suddenly telling him about your conversations. How close is he with this girl? Good friends? Was she ever included in your "dates"? Is she a gaming buddy with him?

It's good you're going to see a T soon. I personally do not like the sound of your situation. Also, if you're working on making it healthier for both of you, is he going to be doing that, too? You can't try to be something better for him if he's not going to try for you. You should try to be better for yourself, not just for a six month relationship.