How to keep a dude hooked on you w;o any sxual relations?

so I like this dude, like I mean he’s just really sxy. He’s the skinny jeans tight shirts ghetto preppy type and he’s just so ridiculously charming. So he made advances to me right? but later did I find out that he had a girl but he stay talking like he’s not interested in getting into sxual relations w; me but wht can I think when he already has him a girl. I know I shouldnt even be considering him but its just that the idea of him attracts me so much and I can’t help but want to know more about him. We have not done anything so far, Im still trying really hard to respect his belle but it’s hard. So he use to talk to me really often, like the dude was really chasing after my interest but then when I asked him what was up with him& his girl he started straying away. He has since, repeatedly said that his current relationship is wrecked up big time so I mean that’s an incentive for me to keep him interested. So I mean if he does leave her, he could just turn to me. feel me?