Nah...sounds like you went as hard as you could. Props for trying to push through it, agree and amplify, etc... Mexican girls especially tend to pull this shit, the biggest cockteases I've known have been Mexican. There was a Mexican girl I was working on, it took 3 months to get the bang, every move you could think of. She tried multiple times to put me in the friend zone, just hang out and expect me to buy her drinks. I pretty much cut her off until one night she called me looking for a booty call.
Just stick to your guns, sounds like you did fine.
Just stick to your guns, sounds like you did fine.