Am I over reacting?!? Help meeee

My boyfriend and I have been together for 3 years and are purchasing a home together. We plan on getting engaged this year. Anyways, we decided to put the home in only his name since we are not yet married. I’m getting so frustrated because he chose a realtor without me, went and viewed the home without me, and keeps referring to as “my house” and says “my inspections “ “my appraisal” “my payments” and honestly it’s bothering me. I told him that I feel so left out of this whole thing and It just seems like it’s just his. He apologized and has been including me more but today he kept referring to it as “his” again. Now he’s mad at me because I told him it hurts my feelings. He says this is already a stressful situation on him and now I’m making everything worse for getting my feelings hurt. Idk am I over reacting for being a little taken back by this? Maybe it’s because we’ve already lived together for over a year so I’m so use to hearing “our apartment” “our bedroom” etc. but it bothers me.