Should I worry?

Last night my boyfriend said something that I'm stressing over. We were talking about his ex. He said the sex with her was great but he'd rather have a hand job than be with her and her drama. I know I can't compare to her in the sack but his comment bugs me. Although he tells me he's happier than he's been in years, and that he loves me I worry, that I won't satisfy him. Am I worrying for nothing?