confused

i started talking to a guy months ago. we had really awkward sex and he lost interest in me and said we can still be friends. he almost completely stopped talking to me then a month later we hung out after the bar with our friend group and did sexual stuff again.

now he’s really weird and wishy washy

he will go weeks without talking to me then some days won’t leave me alone and asking if i have a new man.

i don’t care abt talking to him anymore and i’m not wasting my time with that bs i just want to know why he would do this?