you're really not "fooked" ive had more than enough people saying there gonna find me and kill me haha, or the old slit your throat line, and nothing ever comes of it, ive literally been stood two benches away at a bar with a lad i had a brawl with a few months earlier who said he was going to kill me, and nothing . . .
people who say they're coming after you are just pissed cause they lost the fight or are generally soft pricks.
On the whole girl situation it sounds like you're making too much effort, the best way to get over someone "not out of experience" as im not into relationships, is to get out, get wasted with your mates and just seriously get into any presentable birds. just break your old routine and you'll feel like a fresh caucasian