Marriage in trouble?

My husband decided to ask me last night about my past, basically if I was a “hoe” back in the day. And I told him that I had slept with a lot of people. I had a major event happen in my life that changed me completely and I’m not the person I once was. But he proceeded to tell me that he could tell because I’m too friendly and I have some “hoeish” ways because I talk to and are nice to people I don’t know very well. Well, then he proceeds to talk about a time before we got engaged at my old job where he swears I was talking to some dude and basically like implied that I was talking or flirting with other men while we were dating in the beginning. It is completely not true and we argued. It feels like now by our conversation and his actions that he doubts my loyalty, 4 years later! I’m so sad because of this. I’m not even angry, I’m hurt. I don’t know what to do. He hasn’t texted me all day except to say I disrespected him by posting a 17 year old throwback picture on Facebook of me when I was younger with some guy standing behind me. Am I really nieve? Because I just don’t get it, and I’m worried that this will really affect our relationship and marriage 😢