Heya! How about some skeletons realizing they have a crush and how they act towards their crush with UT Sans and Pap, UF Sans and Pap, US Sans and Pap and last but not least SF Sans and Pap - if thats too many then feel free to cut some of them out :)
(P.s. - sorry about the earlier mix up lol)
Classic: He realizes when he sees a big ol' smile on their face, and he is completely smitten with it. After that, he'll drop subtle hints and/or he'd go into panic mode. He'd layer on more puns to avoid talking about it first.
Vanilla: He realizes immediately like he knows he likes someone and yet, he subtly avoids it. He doesn't act different minus his subtle flirts, but sometimes, he will say something and pretend like he didn't.
Cardinal: He catches onto his feelings when he realizes he got them. He immediately panics and covers his feelings up like so hard. He is too scared and not nearly good enough (his words, not mine) for them.
Captain: He finds out based on how he notices their smile and he panics. In his head he is going "oh, fuck, no, nonono!" But eventually, he does get comfortable with it and he does outright ask them eventually.
Navy: He sees how beautiful their smile is and how beautiful their eyes are. He falls head-over-heels and is terrible at hiding it. But he's hoping his crush never catches on. He loves to do extra acts of service.
Syrup: He notices when they smile and when they touch him. He falls head-over-heels buit he's better at hiding it then his brother. He keeps to himself and subtle flirts and puns that are flirts too. He does get more physically affectionate if they're comfortable.
Brass: He keeps to himself but he knows when he knows. Since he's quiet and calm, he does lovingly help more often. He loves acts of service so he does so. He also outright flirts like not even subtle. He does confess when he feels the time is right.
Jet: Baby, he's not gonna notice until you're being cute and amazing. He gets all flirty and sweet when he is in love. He loves to get extra affectionate and cuddling. He loves to drop extra acts of service and is super sweet.