What's more worst? To have sex just for the fun of it or to have sex with the man you love but doesn't love you thinking it's a way to be together with him? For me, they are just the same.
Sex is not a tool to get love. If you're using it to get love then you're the most pitiful creature on earth. Why don't you leave some self respect for yourself and just move on? That man will just use you for his personal intentions. Yet, you're willing to give it all just because you love him. Where's your delicadeza?
Girls should have self respect first before they can be respected by other people. Know that a man will truly love you for who you are and not only for your body. Remember that.
If you're against my opinion, share yours in the comments. :)