Depends on what you expected. If you spread your legs everytime he calls then the fault is yours. The lies and manipulating occurs when you allow it to happen without consequences for their bad behavior. If they cheat, you allowed it. If they ask for nudes and you give em, then live with the choices you made. If you think they are bad or using you... then cut them out of you life!
I think people who lie to get someone to have sex with them and constantly cheat on their S/O are generally bad people but I don't think people who ask for nudes are bad unless they share them with other people or use them to blackmail someone