Am I wrong?! ADVICE PLEASE!!!

So i have been with my SO for going on 10 years in November. We CONSTANTLY fight over the stupidest things. I am constantly getting called names and am told i am a bum. I work full time 50+ hours a week as does he.

So a month and a half ago we got into a huge fight because for his birthday i got him a cake BUT i did not get it personalized..he got super bent outta shape and i told him maybe we shouldnt be together if i didnt do good enough. He left. He left for 4 days and we mutually decided to try to make it work and change our ways.

Here we are a month and a half later...done. We had a conversation about marriage about 1 week or so ago and i told him i was not ready to marry him. Especially since he up and left because we got into a fight about a stupid cake. Ever since then that gets thrown in my face almost on the daily. We found an apartment we both really liked. We currently live with my mom. We were supposed to sign the lease this coming weekend. I told him i wasnt ready to sign a year lease with him because of how much we've been fighting. Am i wrong for doing this? He told me that if i didnt sign the lease with him then he's leaving and we're done. Am i being ridiculous? I do love him but something is just different now....any advice ladies?! Please and thank you!