This guy in one of my classes last year liked me, it was clear as day. He was constantly looking at me trying to catch my gaze, smiling, etc. He had... Show More
Most Helpful Opinion
It can be a combination of things. He could be totally in love with his girlfriend (she's opening up, they become more intimate). It could be because he didn't find you all that more interesting after his initial impressions.
But to answer your question...yes I guy can lose a crush on a girl very suddenly. It happened to me when I found out a girl I liked showed me her new boyfriend. I was like...*I don't like you no more*