Is It Worth It To Stay? (Long Post/Rant)

So. I don’t really know why I’m posting this. Maybe it’s because I want advice, outsider opinions, or just to vent. But I’m just so confused and lost and frustrated. Some of my family and friends believe that my boyfriend (of 3 years) is emotionally abusive. But I don’t know. I partly see it, but he doesn’t put me down all the time or yell at me all the time or crap like that. But I talked to him and we are working through that issue. (There are many other things he has done that indicate emotional abuse, but I pointed it out to him and I think he’s trying). Another thing is that he lies. About stupid and insignificant stuff. The last lie I caught him in he said that it was because he didn’t want to look bad in front of me and that he didn’t want me to see him as a failure like he saw himself (he made up a stupid story). The issue with that is that he always makes me feel bad for him even if I’m the one upset with him for lying. And I’m so scared because I can never tell when he’s lying. It stresses me out so badly. I also am starting to believe that he might be a narcissist. He always talks about how smart he is, how smart our kids will be because of him, and all of this other stuff. He always embellishes stories to make himself look better to other people. He has to be the center of attention a lot when we’re with other people. It drives me freaking nuts. He also treats me like a child and it pisses me off so much. I just don’t know what to do. I just turned 21 and he is 20 (he turns 21 in November). He also can’t keep a job for long. He either quits or is fired. He says it’s because the job is shit, crappy coworkers or managers, racist managers (he’s Hispanic), etc. But after it happening repeatedly...is it safe to assume that he’s the problem and not them? I just don’t know what to do. He just recently got a house and I already told him that I will not pay his bills if he quits his job (he’s already said that he wants to quit many times). But I’m so scared of what’s going to happen. I love him but I find it so hard to trust him. I know this is all over the place. Thank you for reading if you made it to the end. I’m just lost and I guess writing this down helped me think. There are other things involved in this so not just this, but I guess this is what’s weighing on my mind right now.