Why is he so mean to me and make me feel like I deserve to be treated this badly? He has made me feel unloved recently because of a few things that he had said to me, and he hasn't apologized.

Firstly, sorry to hear that you have been mistreated and that you feel unloved. There is bound to be arguing between two people in a relationship and, most of the time as a result of the fighting, we say or do things we don't mean. What is most important though is after the fighting that you both are able to say sorry and apologize. If the way he treats you makes you feel unhappy, then you will only get the right answers after speaking to him about it. At the same, you deserve to be treated with respect and if he can't seem to do that, then he needs to know that you shouldn't have to tolerate it.

I think we all have these questions, at some point. It is our job to manage our self-esteem, and if someone is tearing it down, we can ask for an apology. Best to use "I" statements, so no blame is forced on him. "I feel hurt and confused by our recent conversation." Then ask "Can you tell me if that is how you view me?". Maybe he doesn't know...I've been there!

Tell him how you feel if you haven't yet. Your feelings matter too. I'm sorry to hear that you're feeling unloved by someone who's supposed to make you feel loved and supported. You can try to tell him why it hurts and tell him what you want/don't want from this relationship. If it helps, you can try to write down your thoughts/feelings down. I hope things will work out for you