Mixed signals

This guy I've hung out with a couple times (and slept with) messaged me saying we should link up this week. This was on Saturday. It is now Friday and I have yet to hear from him. I already asked if he was free ine night earlier this week and he wasnt. What do I do from here? I don't want to message again but I do like hanging out with him. Why would he say he wants to hang if he has no intentions of doing so?