Although BPD is often linked to promiscuity and random sexual encounters, my experience (23M) is quite the opposite.

I actively avoid sexual relationships. I've never even had sex. I've had a few non-sexual romantic relationships and with time, I've completely ceased to seek any intimate relationships whatsoever. My problem is I do get obsessed and clingy with the person so much, I do ghost out the person once the affection becomes unbearable.

At that point I no longer want to see or think of that person. I promised myself not to get close to anyone since the mental agony that closeness causes me outweights any pleasures that might come from being in a relationship.

Sometimes I do meet someone attractive I vibe with,  yet once the interaction moves to a romantic sphere, I get alerted, hypervigilant and try to avoid the person.

The pains of loneliness do cause me suffering yet in contrast with suffering I experience when pursuing romantic closeness, I gladly choose celibacy and presence of my friends than getting myself into a situation I will inevitably get hurt.