?? How Do I handle this situation ?

My bf and I have been 2gether for 4 yrs. He moved last week from my neighborhood into a house that he purchased. He has never let his walls down with me and just accepted my love in all these years. He has broke my heart over and over with mean words and selfishness. He has never cheated on me but he has done everything but- Since his move, I went over to his new home and he asked me WHY DO YOU ALWAYS JUST POP IN you never call first. Well, I didnt think 4 yrs 2gether required a phone call. His old apt is around the corner from me. I had left my sunglasses over there before he started moving the other day. I am upset with him and havent called him for three days cuz he is just being hateful and arrogant acting. I drove by his empty apt today on my way out of the neighborhood like I always have. My sunglasses are there hanging on his door on the door knocker. I refused to get them off because thats just cold. Ill buy more. That would be like me leaving something of his on my door.