Relationship with my supervisor

You read that right this post is about a relationship I have with my supervisor at work. It started off as is just being really good friends with a good connection. Eventually and unintentionally it got flirty. We keep it professional at work of course and no one has any idea we just act as our normal friendship. However after some time now emotions are higher, theres jealousy, some negativity. And I felt it was best I take a step back. So I told him that we should just have a simple friend/coworker relationship because I can’t handle the pressure right now. He agreed. But I’m sooooo hurt. I feel like I lost my best friend or my partner. I’m worried we won’t be able to be good friends or that work will be awkward and I don’t know if I did the right thing 🥲