Hmmm. I met him when I was 17 and he was 21 - we had a lot of fun until it became clear that I was going to pass my A Levels and go to university. He had endless tantrums about it and threatened to kill himself. He cried all the time.
He once read my diary.
He was massively homophobic (we lived in fucking Brighton) and quite racist.
After I went to university, he kept ringing the flat phone and not saying anything if someone else mentioned it. I mentioned to him that a couple of the girls had been speaking with the police about some silent phone calls and he admitted it.
He really wanted to come up with me for freshers week so he come come on the pub crawl with me. He actually wanted to stop me talking to any men.
When he was bored, he would pick a fight with a nightclub bouncer / barman and get us thrown out. He quite often tantrummed if shop / restaurant staff weren't being "nice" enough to him.
He couldn't keep a job (he was a software engineer so being made redundant is an occupational hazard but he was also a lazy bugger who thought the world owed him a living).
We lived together when I was a student and for every pound he put on the gas / electric, I put two on. He had a job at the time.
He borrowed £4.5k off me (inheritance from my granddad) and was super ungracious about paying it back. He had borrowed it so he could do a masters and then, once he was in work, decided he wanted to be a pilot instead and was going to spend £5k getting a pilots licence. He got really funny with me when I said that he had to pay me back first. I had said it in front of his parents so he ended up paying me £100 a month.
Once, my mum gave him £20 to buy a round of drinks when we went to her pub quiz because she was so worried that he wouldn't offer. He bought one round and kept the change.
He split up with me exactly a week before I started my first set of professional exams and then tried to get back together with me the day before my last exam. He was shocked when I wouldn't let him come round.
After we split up, I felt like I was on a permanent holiday. Even though I was working like billyo at my first job. And I had loads of money.
He's married to someone else now. Poor bloody cow.