Try to sound certain next time he talks (if you engage at all, which i dont think you should). Replying with "I sort of have a boyfriend" when put through a douchbag filter and translator means "im having a fling but im REALLY open to having my mind changed!"

So if you're like me you automatically tell the truth, the whole, accurate, truth, when people ask you questions. Lying just seems wrong and weird etc. And you extend your honesty when you are talking to anyone automatically.

So im going to let you in on a secret, it's ok to lie to douchebags do they'll go away. Single Women go out to bars with wedding rings, they say: 'actually im gay', they talk about their boyfirend in the seals... women do all of these things to lie and convince men to go away. There's nothing wrong with just saying you have a boyfriend, creeper doesn't need or desrve to know all the details. If you think you could pull ot off he could be your boyfriend in the FSB who knows 400 ways to kill a man with his hands and 100 ways to make a body disapear. You would not be the first to try the "my boyfrienda a scary SOB" tactic