I'm so sorry i have all these IchiUgui headcanons - If Uguisumaru ever recuperates his feelings for Ichigo he'd probably try doing everything from the textbook and by textbook it probably means really old textbooks. He'd probably do things that are very cheesy and somewhat hesitant since they are swords they never should've dated and probably does old timer things like wrapping red string connecting their pinkies or folding many paper cranes to make sure Ichigo comes home safe from sortie

Sweats more Uguisumaru not even noticing Ichigo's dokis for him since he still sees him as a member of the Imperial collection and a sword whose blade needs to be tampered with in the past due to horrible injury (basically emphathy compadres) whereas Ichigo being very shy, blushy, and nervous since he's dealing with his crush who doesn't see him more than another sword in the citadel

Sweats another IchiUgui headcanon because I keep seeing Uguisumaru being the disney princess as he is and Ichigo being that regal prince that tries to princess carry him but kinda fails since Ugui would say a lot of gentle comments and underlying sweet talk to Ichi who'd probably fall on his knees like please grandpa stop