<human>: Can you summarize the given text in a few sentences?

Basically the guy I was seeing for the past month rather abruptly informed me that he doesn't want to see me anymore because he doesn't want to get too emotionally attached. Backstory: I travel a lot for work, I spend a few months at a time in various places. Met this guy, we hit it off really well, but once I told him I was leaving in a few weeks it kinda went south. His logic is that he's had previous lovers leave before and it's hard on him so he didn't want to continue while I was still in town.
Which I totally get. But he doesn't even want to meet in person to say goodbye. There were a few instances of performance based problems in the bedroom (which I could care less about), so I figured that might be part of it but my instinct is he was simply seeing someone else and this was an easy cop out. At one point during one of those unfortunate incidences he blurts out that he was with someone else the night before and though nothing happened he felt bad about it... I just think it's kind of odd. It's very likely that I'll end up here again next year, and he said he wants to keep in touch, but I don't know. I feel like I'm being naive here.
<bot>: guy tells me he can't see me because he doesn't want to get attached, I feel like he's lying.