Is it normal to instantly get a crush on anyone who is a bit nice to you??

This is something that has happened to me for as long as I remember.. Everytime someone shows me some kindness I start crushing on them.Said crushes tend to be towards a single person at time (but not necessarily), and the time it lasts varies.. Generally as soon as someone else comes along or my current crush is out of sight, i'll switch the target

It doesn't matter if i'm actually physicaslly attracted to them or not (I rarely am) -- long story short i'm into dudes, but since romance disgusts me and so does physical contact in general (I'm probably asexual and/or aromantic), i'll avoid getting into relationships --- i've gotten into some in the past, but more out of being a pushover than my own will, so it never worked. Otherwise, I have a bunch of issues, make a very shitty partner and do nothing but hurt others, plus people are creeped out when they get to really know me.. So in my view i'm doing society a favour by staying single for now , lol.... This also applies to friendships, but to a lesser degree

Still, I can't help but get those ridiculous, random crushes, and it gets so damn creepy and innapropriate at times. Getting praised or giving me any kind of attention in special is pretty much a 100% guarantee i'll crush on the person doing it. But it is not a pleasant crush because it only brings me anxiety and worries as well as disgust. It never goes anywhere, and the smarter people who pick on it take advantage of me constantly. Also I have no friends anymore ebcause i'm incapable of not getting crushes on them, which pretty much killed it for me every single time and made me have to sabotage things so nobody got hurt.

IIN? Anyone here can relate? Also how to deal with this? :/ Years trying to fix it but when I think i've made progress i just have to go and screw it up, it seems.