Friends became friends with benefits!!!!

my dear dear male friend of 2 yrs became a fwb a year and a half ago before his horrible divorce was final. He flirted for a few months before truly advancing. WE had sex for a few months and decided it was wrong. He doesn't know what he wants. Now after months of no sex we did again a few days ago. I will be gone for out of state for the summer . I WANT to find a secure relationship. Should I just give up waiting on him and date? we are in our late 40's

Give up on him. He's not sure what he wants and it will only stay FWB