It's not right to call him a cuck, just an asshole.
instead of being a fucking pussy and giving this girl the runaround, and acting like a pussy, he should just tell her that "No, I'm not interested in having sex with you." Emphasizing the "with you" part. It's easier for me to just assume he's into men. (that's not a complaint, before anyone gets their feelings hurt)
*sigh* But I guess that wouldn't be funny, so I'ma overlook it.