Okay so I'm putting this question here because I have bpd and it obviously affects how I think in relationships lol.

I've been seeing this guy, we are sexually active and go on dates. I want to ask him if he's fucking with other girls. Flirting with other girls. Basically if we are exclusive or not because if we aren't exclusive I can't continue this. Being sexual with someone while not being exclusive makes me feel bad about myself and is a waste of my time. I don't want to share and I don't want to put myself through this feeling of being consumed by him if he's out with others.

Basically I'm wondering should I text him about it or wait till we see each other?
In person talking is always better bc sometimes tone and meaning can be misread over text. However he normally picks me up so if he says we aren't exclusive, I'll obviously be very heartbroken and want to leave and that will be an awkward ride home lol. Texting would avoid that and I'd be able to have the answer now instead of obsessing over it. But he's very literal so he doesn't always quite grasp that I'm upset (autism). 
I'm at a loss someone give me a direction to go with please I'm indecisive