Girl redditor here. I recently met a potential player-type guy and started texting each other. We went out with a group of friends last night. Texting goes (somewhere along the lines of):

Him at 3:30am: Thanks for the great night. Don't work too hard tomorrow.

Me at 3:50am: No problem. You helped me a lot with picking the right bars.

Him at 6pm next evening: No worries. You should get the credit for organising it.

Another good night out again. Hangover today!

He's told me in several occasions that night he thinks I'm a cool girl. I want to come across as interested but not over-excited (I tend to overanalyse with everything). Should I text back or leave him hanging? If so, what should I say?