He always says how awful of a boyfriend he is. 

"I don't know why you're with me." "I'm an awful boyfriend." "You deserve to be with someone else."

I hate this. I called this "Sympathy Sh!t" They want you to feel bad for them so that way y'all won't fight and in return make you feel bad. Personally, when my exes would pull this, it'd make me feel awful, like I never did a good enough job building them up or I never made them feel good about themselves. However in all actuality, they felt fine, but they just didn't feel like arguing or putting up with me and they knew it'd make me feel bad so they took advantage of my personality.

When they get mad at someone else, they let it out on you to an extreme. 

Don't get me wrong everyone lets anger on those they love the most...but only to a certain extent. Let me give you an example or good and bad: When my current boyfriend gets upset or someone makes him mad, he will come to me to vent. When he vents, he gets mad all over again because he's talking about it. This also means that he's not going to be super sweet or act like everything is fine. That's fine. That's understandable. However, my ex boyfriend, he was the worst when it came to getting mad. If someone made him mad, not only would be not even tell me about it, but he would literally go DAYS without talking to me. God for bid if I even got upset that he had been ignoring me for 3 or 4 days straight, that'd make him even more upset.

Venting and getting upset versus getting upset and acting like I am the one that caused you to throw a fit, is completely different. Communication is key. I always tell my boyfriend, "you can vent to me about anything. Even if it's about me, I'm here to listen to you."

He threatens his own life if you even mention breaking up.

Soooo many people say, "If you break up with me, I'll kill myself." Seriously? Why would you ever put that much pressure on someone? Not to mention, 9 times out of 10, this isn't the case. You won't kill yourself because someone broke up with you. You don't need anyone. You can go through life and be completely independent. You don't NEED to be in a relationship.

He treats you awfully, but expects you to serve him. 

There are so many couples that are like this. My ex boyfriend thought like this. He'd never make time for me, treated me like I didn't even exist half the time, and I was never a priority. He thought that he could treat me how ever he wanted, but he expected me just wait on him hand and foot. No. You're crazy. I'm not going to be ignored for 4 days and then act like everything is fine. He wanted me to just be completely ok with the fact that he didn't care about me and that he was lying to me 90% of the time.

Don't put up with that.

He doesn't let you be yourself. 

I can act and say whatever I want to my current boyfriend. He's never made me feel ashamed of myself. I couldn't do that with my exes. I always had to be ashamed of something. I was never enough.

Don't allow someone to make you feel like that. You can't help who you are. Find someone who appreciates you.