Are there guys who lose interest as soon as a girl shows she likes him? Why would he do that?

Anonymous
Bumped into a guy I knew, he showed interest in me, flirted, wanted me to call him. Then when I started initiating texts, inviting him to hangout, asking questions to get to know him, he pulled away and stopped trying to see me. Do some guys do this push-pull behavior? He's younger than me, is that the case?
Are there guys who lose interest as soon as a girl shows she likes him? Why would he do that?
3 Opinion