How to hurt a Scorpio guy?

[Azuma Yunoki]

My Scorpio crush constantly checks me out when hw thinks I am not looking and always looks away quickly when I catch him. My friends and classmate actually catch him doing that and they described his stare as intense, hypnotising and penetrating, as if prying into your soul. The thing is, is that he I talk to another guy or is seen with a guy, he always stare and analyse us. Whenever a guy tries to flirt with me, he usually laughs loudly until his face is all red before the guy goes on further. Last time hia rival complimented on how attractive I looked, my crush went and stood right next to me and looked at him in a determined way. One time after his rival (Virgo) and I were getting a little too Close and saw us being so close together, he moved away from me as I used ro sit next to him. Is he jealous? Is he possessive? Considering we haven't talked yet andI am not his girlfriend, how bad will it get if we were to be in a relationship (I am a Sagittarius). Also, when I blicked him on Facebook he deactivated his accoubt. Dies he get hurt easily?
*does