You don't text guys/hangout with guys frequently when they have girlfriends... Even if you don't like him that way there is still no excuse to be face-timing him, texting him or wearing his sweaters. It would be different if they grew up together or were in the same grade but they're not. Alyssa is one of my friends and I don't think she deserved to have a girl do that even if she claims to "not like him." You can't overstep boundaries and not expect to be judged by others. Plus she's never even really talked to me before so.