“I love you”

I’ve been seeing this guy for almost a year now (just friends) and he told me he loved me during sex and trust me I already know it was probably just an in the moment thing but the hard part is I fell for him months ago and I already know he doesn’t love me because he hasn’t said it any other time, but hearing that made me so hopeful, I’ve always been one to cling to words. I’m having a hard time getting over it, we’re still seeing each other which I’m happy with but it’s eating me alive to know what he really thinks of me, I’m too nervous to ask because I don’t want to scare him off or lose him, and my anxiety is running a muck, any advice to cope or how to go about this situation would be great