Desperate need of advice.

Meghan • Im the artificial redhead.
So theres a guy who would like to be with me but I dont think I want to be with him. Im so self-conscious about everything, I feel it would just be a constant argument between the two of us. Plus it all comes down to basically how could I love him if I cant even love myself. Every time I even mention something negative hes always telling me thats not true and changing the subject. I dont know how to be more confident, and its going to affect this relationship sooner than later.. any advice?