You were bored and you fiddled/annoyed your crush without knowing,
If your crush is:
-Donnie: you fiddled with his lab experiments and made one explode
-Raph: you fiddled with Chompy and read his magazines
-Mikey: you played with his figurines and broke one
-Leo: he was meditating and you refused to let him be

You of course had a fight and- make it upppp