this is cute, i vote she come clean. up until six months ago he was a typically kind, friendly, patient sort've guy with the occasional angry outburst which made his job in customer service somewhat difficult. at that time he was in an accident (type tba) that left him in a comatose state which was when pro (the alien aka glowing orb that inhabits reid) swooped in and took over his body. since then he's basically reid but because of his empath abilities the anger issues escalate way higher than before, he makes way more lists, he's very calculated, and can sometimes make rainbows appear. especially in that first week as pro is getting to know reid there would've been a lot of blank stares at ro as he's slowly recalling who she is/what their relationship is. in other words, absolutely you nailed it, he does seem like a lizard person