I was wondering if this is possible, I have been looking and looking and have found nothing on it, so maybe it does not excist..... but my boyfriend recently got really into UFC ( Ultimate fighting challenge) we have never been into sports before, but since then he has gotten into two fights... neither of which he started but he sure used moves he saw on tv.. save him from getting more hurt.... not the point, but i have a feeling he may be getting addicted to fighting and likes the "rush" it gives him, is this possible to be addicted to fighting?

It's totally possible. I'm sure your bf is feeling the rush of adrenalin, he gets a shot of "control", and then there's the "respect" issue. I hope your bf can channel his "energy" into some productive channels. Good luck.