Confront your worries.

"What do you mean by that?"

"Simple, act like what the word 'Bimbo' means to you. See whether you are what you fear to be, or not. And even if you were, rejecting your true self could be very detrimental to your mental health." She smiled at his perplexed, hessitant, expression.

"But..." he cut himself off and looked down, deep in thought until their neared the end of their walk.

"Doctor. I think I should do that, but I, I really don't know how, when I say bimbo I think of blonde stupid women that lives off of sex, and I don't think I could do that even to try but..."

She stopped as an idea snapped into existence in her mind: "Hmm, how about I help you? I be the man, you be the bimbo?"