Peter probably changed it on a larger scale, but, I don't know, I think Matt was scaring her off with all his talk about being in love with her, he didn't let it happen organically.

Oh yeah, Family Guy just liked being silly. Brian was sort of justified since the town was against him, and I guess he did need to snap her out of it, but the whole message was pretty messed up, and he still seemed like a jerk about it.