Anxiety and afraid of ruining relationship

So I was in an unhealthy/ controlling relationship but I luckily got out. When I was single I kept getting messages from this guy I knew but I wasn’t interested so I wouldn’t respond and I ended up removing him from some of my social media after saying I wasn’t interested. Now I’m in a relationship with this great guy and the last thing i want to do is hurt him. I can really see myself with him forever. A few days ago I was at work and I saw that the guy I wasn’t interested in snapped me. He sent me a picture of him half naked and I immediately removed him from my sc. Even though I didn’t encourage any of this I felt so guilty and I felt in a way it was “cheating” I feel it’s because I was always accused by a past partner of cheating and it’s just messed with my head. I was also really mad because I post about me and my bf so he knew I was taken. And then my anxiety took over and I thought “well what if my bf could find out and think I was cheating even though I didnt encourage any of this” I feel my anxiety does get the best of me and my fear of my relationship failing scares me so much because I love my bf so much. Did I do anything wrong???