Well.. The INTP ended up kind of flipping his lid on me.
I decided to quit thinking about us and just to have fun with it. I was still in love with my last guy, so I doubted anything this INTP would do could ever hurt me. So we went along, dating and having a generalized blast. I was having fun and it was very lighthearted and stopped thinking that we should have a committment. It seemed to work great for both of us.
Then one day he started acting kind of distant. A typical guy thing to do, so I gave him some space. Then one day he came over and started acting funny and then left. (I guess he said my roommate and I were "leaving him out" and we weren't. I think he thinks there's something going on between me and my roommate.) Then he started being a little snide and sarcastic. Then one day he refused to put his arm around me. So I finally asked him what was wrong. He was really vague. Like, "this relationship is not good or healthy." With no further explanation. (This was on IM.) I was really hurt and surprised.
My roommate said he's been acting kind of funny around him, too.
I don't really know what happened, but i'm not the type of person to ask a lot of questions or chase anyone. He said he wanted to just be friends. Actually he said he wanted to keep going but just "take a step back" but he's acting too weird for me to want to spend any time with him at all, and I feel that seeing him now would be rather awkward and I don't feel like bringing up the drama again so I just kind of dropped it and stopped talking to him. He's been trying to random chit chat on IM or text but I usually cut it off.
Roommate says he does this when he gets too close to someone or something.
Makes no sense because I wasn't sensing any kind of seriousness about us.