Most Helpful Guy
He sounds like a horrible person, so the hard truth is he doesn't care or remember that it's from you or if he does, wears it to hurt you...
Heartbreak is horrible, you have to block him, stop stalking him, stop over thinking and really try to pick yourself up again.
He is a bad person, you need to focus on yourself and there are so many better guys out there... but Don't even focus on that right now... Try to do things you like, hobbies, classes
Most Helpful Girl
He probably just really likes it, i don't see why someone should waste good clothes just because an ex got it for them. I don't think he thinks too much about it to be honest, i'm sure it comes across his mind like "oh ya _____ got it for me" but I don't think he's reminiscing.