K, if I invite him then I'll pay.
Otherwise it'd depend on my mood. If I've been aloof and snag the bill then I'm telling you BAH BYE!!!
If I've been really friendly, I'm showing that I don't have to depend on you to pay; but maybe I'd like too.
If I
offer 50/50 then it's just a friend thing.
Course I have a friend that I had invited to a formal cause I thought it'd be fun. My formal, my invite, my bill. He then later took me out to dinner, and he treated. I thought cool, my buddy is paying me back. He then made a move and I had the hands down worst and most uncomfortable kiss of my life.
Signals definetly crossed.