What are your lines that woman crossed or you stop flirting and leave ?

Signs that she doesnt desire you and wont have sex with you.

For me

Mostly she wants to have my money by using me paying dinner etc

Bored face expression

Non respected behaviour even like insultng as a humor

Chatting like interviewing ( not important If I am in a directly ask condiction)

Got angry or act like a nun when I touch her ( thats a specific I had a friend that his girl was angry because he hold her waist on first date but then they end up being happy fbuddyship)