Affiliate Marketing Secrets

I have a serious bf I’ve been with for nearly a year now. I am 22, he is 21.
When I met him he had a niche job (the sort you don’t come by easily), and was making plenty of money. He lost that.
Since then he hasn’t held down a job (he’s had 3 in 9 months, none of which  
 lasted more than 3 weeks). He hasn’t got any qualifications outside of his old job (horse racing).
He currently works like 20 hours at his parents shop, and manages to pay all his own bills (car, insurance, mobile phone, horse shares). He however practically lives at mine, stays over every night of the week, eats the food that I mostly buy (he occasionally buys himself something, but it’s always enough for only him).
He has never once asked me for money, and I have offered it to him, but no matter how bad his situation has been he’s never accepted, and his bills are always paid on time.
I have recently found out that he quit applying for jobs months ago. I sat down with him and tried to sort out his resume and apply for jobs, but he treated it as a joke, and kept coming up with reasons for why he shouldn’t apply (things like “oh i’m too young, they won’t take me”). I’m not syure if he genuinly thinks he isn’t suitable for work or if he just doesn’t want to.
I have a strong suspicion he enjoys working 4 hours of a morning, going to the gym, then watching cartoons/horse racing at his parents before coming over to mine and getting fed/having sex. He has also said he will only take a job if it doesn’t interfere with his bodybuilding (ie – his 90 mins at the gym every day).
I’m also concerned that his horse bills (he has shares in 8 horses, none of which are good) are going to take over. He manages to pay them, but he really only gets the money through gambling money he actually earns. He pays about $500 a month in horse bills.
I’m scared that if I stay with him, it’s going to be a future of him taking care of himself, and never being able to be part of a couple.