Originally Posted by WhatHappened
She was having an emotional affair behind your back...lying to you...deceiving you...and you tried to find out what was really going on and whether she was now telling the truth? So it's your fault she moved out?
A crush isn't an emotional affair. I read it more as she developed a crush on another guy, Dutchguy78 started snooping through her stuff and then she moved out.
Perhaps the OP could clarify that point.