Hung out with a girl on a Sunday. Messaged her the next day (Monday) making a loose suggestion for the second hang out. She asked me if I want to hang out this week or next week because she needs to arrange it with her work as per what I say. I want to meet her again ASAP, but is it better to say next week to make myself unavailable/not look too keen? Or is it better to meet ASAP to strike when the iron is hot?