Is this a BPD thing? 

I dont hook up or have sex or relationships on account of being creeped out by the type of men i seem to attract. Men capable of treating my friends so nicely but treating me like they are entitled to fuck me. I only have had one sexual partner/long term relationship in my life.  I dont do anything that says, "im a useless slut, have at it."

I have had guy friends in the past that have told me they just like me as a friend, and arten't attracted to me. THey proceed to elaborate on how they dont want to date, they aren't ready for a relationship, they dont want to ruin the friendship, they're not attracted to me "like that"...basically random, long winded romantic rejections.......despite my not being interested, or just ambivalent about sexual/romantic interest in them.

Then they go on to make innuendos, blush, get nervous around me, work on projects with me, text me all the time to say hi, IM me all night just to talk about random things, school, make jokes...They  get quiet and pouty and jealous if any other guy talks to me, or if i am too busy to hang out. 

When I tell these "friends" to give me some space or tell them im not comfortable with what they say to me (innuendos, sexual jokes about me) and to stop it only prompts them to deny any and all of their behaviors, or express general irritation and negative tension when they are around me, and then "test me", or else stand around just watching me from afar.

Meanwhile, other female friends of mine are treated courteously by these same guys who want to get to know them, ask them questions about themselves, and appear in every way normal and nice to them... one guy friend even snapped at me how much he loves my friends, and proceeded to ignore me at a bar while he flirted with them - and then became sad when I didnt invite him to my place that night. 

I am so confused, and the more i withdraw, tell the guy stop and what im expecting of him, or  tell him i am looking for him to be nice and respectful and treat me like everyone else......or else i can't be around him, the more he denies a problem and begs affection and attention. Several guys kept trying to cheat on their girlfriends, fiances and wives with me, or keep asking me for 3somes.

I am a quiet loner who keeps to myself, is depressed, and very celibate on account of being creeped out by men like this. 

I am creeped out. Why do other people get to have normal friendships? What the hell is it that im doing that this is what I get? Do any of you ever experience this?  All id like is to be loved, my goals are not to have mindless, meangless sex.