Capricorns and jealous?

How do you know if a capricorn man is jealous? What does he do? My capy guy acts super friendly and touchy with other girls when I'm around. When he thinks I can't see him or I'm not paying attention he doesn't care if they're around. Only when he thinks he can get me to look he does it.
Just how do you caps act when jealous?
And how do you act when you secretly want a girl? Or when you want someone you lost.

We can't tell you, then it wouldn't be a secret... Lol. I can only tell you that if it really bothers, we will stray away...