I ask myself – are they hurting anyone and/or taking an unfair advantage by breaking the rule? Or are they maybe just trying to lighten things up with a gentle prank – as in the case of your Post-It originally being attached to the wall next to me (she’s a very close friend, but answering questions is not in her job description!) In that case, no harm done, and I’m cool with it.
No, RAs are not permitted to have romantic relationships with the residents of their res, according to Jake Cusick, Housing Assignment Specialist at ResLife. So I guess you have to let this one pass. Crushes do fade in time.