This play reeks. You will still likely get a 3 way pot plus you're OOP and would like to be HU. Make a real raise so you can make a real cbet here and have some FE if you miss.

Yet don't want four seeing flop and thought her raise was low enough to price them in after my call.
I really don't think this is going to happen. 3 at most...

Don't want to reraise big here as Tina is pretty tight and i expect possible high pp here.
So make a real reraise and fold to another raise. Or make a real reraise and play postflop poker. Either one is better.