How does he go from loving to hating??

I met my husband in my teens. We were both going through bad times he was getting divorced and I was a jerk. We went out a few times and it was awesome. We grew apart and he got married. Fast forward to years later and we got back together after we had both had 2 failed marriages and bad relationships. We had so much fun together. Moved in together and then married. We ended up buying the family business and though we worked different shifts, we still had fun. We loved each other. I cooked for him, did his laundry, made him lunch, rubbed his neck...we moved a couple of times most recently to a house that he had worked on for the same rent we had been paying for an apartment.

I had been going thru some med changes for anxiety that made me sleep a lot. He bought a boat (with my money my aunt left me) and kept asking me to get more and more money til I was depleted. Over the course of a year or so I bought wine by the case because I got a discount. I didn’t drink every night nor did I get falling down drunk. One day he asked me if I would quit wine and he would not drink, not that he did a lot. He made some new friends and I was happy for him. When I quit drinking he changed. Started being cold, not saying goodnight, not leaving me stupid love notes like he used to and me too. One day I noticed he wasn’t wearing his wedding ring and when I asked him he told me to stop busting his balls, he had a cold. I left soon after. He said we couldn’t afford the house rent so he moved to another town and I had to move to my parents. He is being so nasty in emails and texts and won’t talk about us .. he loved me so much and was so incredible and I thought I was to him. He tells me that I treated him like crap for a year. What?????? Not to mention all the money he made me take out of my iRA and inheritance but he blames me. He is s being so cruel I don’t know what to do.