Yoshida from Aitsu no daihonmei as he starts off being offput and uncomfortable in his relationship with his boyfriend but the gradually gets into the mindset of "oh he's my boyfriend and I'm allowed to be jealous and express interest in spending time with him" (they both start being sweet to each other at Ch18). There's a part where he's upset that he didn't argue against a guy that said "you guys are dating as a joke" he's upset and says "I'm dating you because I like you and I couldn't even say that" when confronted by said boyfriend. He's also meant to be "ugly" but as a result he's more expressive and has sillier faces making him cuter to me.
which yaoi dp you think has the most adorable uke