There are girls who want a relationship, and in principle, you are also ready to consider her, and you can honestly transfer everything to a horizontal position, and honestly then be disappointed and give up on this matter

And there are those (especially if there are some below you with a rank of six+ -, but very cool as a person - I always didn’t give a damn about appearance) who are clear that they are ready to devour you at the first meeting, and I kind of would be interested in them try closer, but I'm almost sure that it will be a one-time thing, because... I’m not a moron and I see the future very well. But the girl wants a relationship (well, more precisely, what ordinary people understand by relationship), and if you just fuck her and ride off into the sunset, you will only become more confident in your cockroaches about this world. Not to fuck her and take her to “friends” - she also often decides that “she’s not good enough” and gets driven away. In fact, I stupidly don’t know how to resolve such situations, I dump them ahead of time, and lose both in sex and in networking. And ideally I want to fuck and be friends;)
How to handle this?