Knobtimist

A person who remains optimistic about their chances to involve in coitus, and doesn't give up at even when facing defeat.

A person maintaining a positive outlook in the field of mating.

“Knobtimist: the guy who gets rejected and calls it ‘foreplay.’”
“Blocked on everything and still talking about ‘mixed signals’… my guy, you’re not a romantic, you’re a knoptimist.”
“He got ‘We should just be friends’ and said ‘Friends… for now 😏’ — knoptimist.”