Sometimes, a person can go along in a relationship and be good tempered when they are getting what they want. You have been pretty busy, he has been working, and he got that house and needed to feel good about himself with that. Ok, but here you are and "he" is not happy.

Notice I used the term Narcissitic patterns. When I said that, I am thinking about everything you have discribed of him, and "his" actions and words. He "is" right now, "thinking about himself" and not "you". This is an emerging pattern that you will need to pay attention to with him.

Sometimes it is a challenging phase, but sometimes it is a red flag too. I did not diagnose him, I have noticed the patterns, something to watch, pay attention to.

I had some red flags I missed myself with my husband, it was quite the challenge for me, even was worse when I got pregnant, and had a child. I can look back and see the red flags for sure now though.

Just suggesting to pay attention, you are smart have been self sufficent too. But, you are still young yet, there are things in relationships we may not notice, important things. Keep paying attention, it is good that you are talking, again, that is all you though. And, it "is" about him. So pay attention and make sure you are not denying yourself.

I will say though, that as hard as this is right now, you need to keep your focus on that degree, that is not far away, and it is important to "your life" with our without him.