What is wrong with him?

Me and my now ex broke up 4 months ago and is still in our leasing agreement for another month until we go our separate ways and yes we’ve been sleeping in separate rooms. I’m just wondering how did I put up with him and this situation for 6 years! I finally decide to end things and see that it was doing more harm than good to “work” on our relationship. From the beginning it was red flags he’s a major flirt, he lies about the littlest things and he’s sneaky, VERY SNEAKY. He would try to sneak and talk to girls through texts when I’m sleeping especially when he asks for sex and I turn him down, I mean it was plenty of times I was working 12 hour shifts and he was just home chilling all day. Oh let me explain that one, he had one full time job since I met him he lost that job and all the jobs after that was part time barely making any money and constantly getting fired so I will always be the one working over time to cover the bills. He have sent pictures of his body parts, his sons mother messaged me on Facebook saying how he’s not over her and showed a screenshot of their messages and he will deny everything I bring to his attention. And it’s so much more he’s done but will be too long. Maybe a month ago he started sneaking in my room going through my ipad and phone if it’s in the room while I’m in the shower taking pictures I took out my phone and putting it on his phone looking through my messages to find something and texts me showing me pictures he took out my phone saying to me why didn’t I send him these pictures and who am I talking to now, he will text me back to back if I leave out the house asking where I’m running off to,but he can leave whenever he wants I don’t text him. He asks me for money to get him something to eat because I refuse to go grocery shopping anymore for him to eat up everything and have no job so he will be there all the time, he said I wasn’t right for doing that. He said we use to always share food I said when we was together we’re not together anymore then he said when I get food I should think to at least share my food with him I said absolutely not! You get food sometimes and have it to yourself do I ask you for anything no! Now that you want something to eat you feel like I need to help you out. So he says well when I get money I’m treating myself.He’s constantly coming at me about the pictures he seen in my phone recently I took of myself and said who are you sending these to? And keep saying I’m not right and said everybody he was with did him wrong and says why me!! I said you gotta be joking! Do you remember everything you did to me he said that’s in the past.