Hey Midas,
The dancing thing I would be 'betting she's probably a terrible dancer and has no rythm and the instructor only gave her the attention because of that' (playfully). - She'd likely respond with 'hell no, im not terrible' or 'hell no, i would out dance you anytime'. - Then i'd be like 'ew, and now even bragging? you are so subtle. you always brag so much?'. - 'respsonse'. - 'ok well you have to prove it to me, im still not convinced, since you said you were only watching the instructors body'. (nice frame setting imo

).
The trip: 'thx for the invite to new orleans, but i want to get to know someone better before i let someone kidnap me'. Or 'thx for the invite, but i am pretty busy for a while. Don't think i can take a vacation anytime soon'. or 'thats quite something for a 3rd date Lisa, you are quite adventurous, aren't you?'
or something along those lines that fits the context.
The comfort thing is a tough one. i might try and twist it into: 'yea, u know what i think the problem is? We're too similar. We would all be about fighting and make-up seks (classic MM)'. Depending on her response you could say 'altho im quite sure the seks thing would be fkn hot..'. Then depending on the response something C-F 'Although for me it would, im a rockstar in bed'. The sexualisation can only take place, if she's going with it after the first time u mention seks ofc.
Jabba