Help me with my SO situation please. I'm begging.

This may seem petty in comparison to others problems but still mine are just as valid. 
Anyway so here is this deal: My SO doesn't make me feel beautiful anymore. He never gives me compliments and it just makes me feel unnoticed and, well, not beautiful. 
I know. I know. I should talk to him about this.  But here is the thing with that... He is a "know it all" and he would only make me feel like I'm the stupid one here as he most often does. 
Help me. I feel like I'm loosing my sanity lol