bad friends?

okay so im (19F) second year at uni and i have these two housemates (both 19F). i went to a rave with them tonight, they convinced me to go after i said i wasn’t sure and one even paid for my ticket so i thought why not. they’re the kind of girls who have to pull a guy every time they go out and i’ve expressed before after i went out another time with just them that i don’t want to be a cockblock (i have a bf already u see). they said not to worry and they won’t leave me by myself to go off with guys. however, tonight they both ended up dancing with guys and i just felt awkward and out of place. i loved the music and was enjoying it but ended up leaving an hour early to get an uber by myself. i don’t know if i’m being dramatic but is it disrespectful to go off and leave ur friend by themselves to pull? i want them to enjoy themselves too obviously but i just can’t help but feel that what they did was unfair especially after convincing me to come out.

should i say something to them? i don’t want to cause any tension especially as i’m living with them

TL; DR – friends getting w guys on a night out and leaving me by myself