I had to read the chapter quickly, so I probably didn't appreciate it to the fullest. I'm not concerned about the ending -- Veronica's comment and the note makes it pretty obvious that Steve has an ex- and it was a old note that Chris found. I expect that after a bit of angst, it'll all be sorted out.
Fundamentalists with fire-and-brimestone preaching are a cliche in gay stories, and, like Bondwriter, it's something I have trouble relating to. I accept it's something that happens, but I've never been able to properly appreciate it.
On a technical note, the jumping ahead in the timeframe seemed clumsy to me. It could be because I read it quickly, but it was neither a clean jump, nor a reasonable condensed summary of what was going on. Steve is having problems at school, and Chris, while concerned, seems to skip over it quickly. I would've expected at least one scene where he tried to talk to Steve about it OR narration about his attempt to talk to Steve. There also wasn't enough of how Chris felt about it, and as someone with a new boyfriend I would've expected him to be VERY concerned -- even if he didn't know how to talk to Steve about it. Remember, this is a first person narration, so I would've expected more of the emotions and thoughts that went with the situation. I can see why the story jumped ahead, but I think a break, and then a quick retrospective would've worked better.