I usually pay for most things when I'm with my situationships. But when it comes to more expensive purchases like hotel rooms for trips or maybe if a FWB is flying in to see me - should I be the only one paying for that too?

What's the correct way to bring up the option to split those things without turning women off.

I make more money than most of my FWBs but I'm also not keen on wasting it on women who I'm just seeing temporarily etc