<human>: I work with this guy and have been interested in him for over 6 months. He recently (two months ago) expressed interested in me and we've now been hanging out and started dating. We're part of the same friend group and he's amazingly mature for his age and I could see this working out long term. It turns out that he only started officially dating me because in his words he "knew it was important to me." This came up because I noticed how much he was texting and snapchatting his ex and I told him that it made me insecure in our relationship whenever I happened to see her name on his phone for texts, etc. 

A bit of history on their relationship: they dated for almost two years and she was his first love. She broke up with him as they were in a LDR and she became interested in another guy. This devastated him. Since then, she broke up with the other guy and has actively tried to get back together with my guy (including a visit). It has been over a year since they officially dated, but he still talks to her via text/snap a lot. 

Back to us: when he told me we were officially dating (we'd told our work superiors, family, etc.) only because it was important to me and that he wasn't 100% sure of us, I told him I wanted to back off from things and step back even if we didn't tell anyone. I also told him that we couldn't build an effective relationship if he would do things he wasn't ready for only because he knew they were/are important to me. Since then, we still hang out but have dialed all the physical stuff back almost 100%. 

I feel like there's unresolved stuff between his ex and him. He's obviously not quite ready to cut the ties, but he's stated that they're not right for each other right now and she is quite a few states away. Am I crazy for hanging around and thinking he'll decide he wants to cut ties with her and officially date me? I believe he is an honorable guy and wouldn't intentionally lead me on.

Can you condense the text into three sentences or less?
<bot>: My "boyfriend" still texts his ex a lot while maintaining that they aren't right for each other. Also started officially dating me only because he knew it was important to me (unbeknownst to me).