i have some basics in the journal if you want to read further but declan's basically evan's opposite, careful to come off as friendly and open but keeps everything that matters close to his chest. he's a serial monogamist who lowkey judges evan's promiscuity and bad taste in hookups and it was mentioned that she'd be someone in particular he'd be like why are we talking to her again over, but he doesn't like unpleasantness so he'd still play nice when she's around, just not go out of his way to hang out if evan's not around