Keep options open/boyfriend not really boyfriend

Hi so my boyfriend ghosted me for three weeks and I assumed he was done with me , so I jus found other options because he keeps disappearing and reappearing like he will start a conversation I’ll respond and he’ll leave so I was like k I guess I’ll move on so I decided to reach out and like he keeps being on and off , so I’m like ok, ig I’ll keep my options opens since he stopped paying attention like FaceTime calls slowed down , communication slowed down ...tbh idgaf if he leaves cause I feel and I know he’s talking to somebody else tbh .