I’m so heartbroken but can I be overreacting ?

Long story short my boyfriend (22M) and I (23F) were arguing and during the argument he tells me “I love you” and didn’t answer my questions. I thought it was cute but also kind of weird that, that’s all he would said.

Anyways we moved on from the argument and he came over. By the way, we were arguing through texts. Throughout the day we were good, even had sex and all but the text would still come to mind how it was weird. So I had decided to ask him about it when walking to his car.

I wish I didn’t. He basically told me that he wanted me to shut up (about argument) so that’s why he said it. I was in shocked and heartbroken. He tried to fix it by saying that he was trying to even/cancel out the bad with a good. But that was just damage control. After he got mad because “we were arguing again” but I told him we weren’t and I left. I guess when he got home, he texted me that he was sorry that he said that to me and he didn’t know how to express himself.

I’m so hurt and heartbroken because it breaks my heart to think that all those I love you he has said to be me were not genuine or because he felt it. Also because he knows that throughout my whole life I have felt unloved and lonely so it just hurt a bit more coming from him when he tells me that I can be loved. We haven’t talked since and I don’t know if we are still together or not. And if we are, I don’t know if I still would want to. I just know that I’m hurt but also miss him. We were talking about getting married this year. At this point I don’t know what to do... I’m confused and need help. Is it possible that I’m overreacting and just sensitive about it?