Should I just call it quits?

I need some advice badly. This is long but I’ll try my best to keep it short. I’ve been dating this guy for about 6 months now. We aren’t exclusive per our earlier conversations where I stated that I didn’t want a relationship because I wanted us to get to know each other more first and he was on the same page with that too. I know he “talks” to other women. I also “Talk” to other men but he is the only person I’m sleeping. With. we have been spending a lot of time over the last 6 months...I’ll go to his place and spend weekends there generally. Prior to COVID, we were able to go out a lil but since COVID, we have generally been indoors. Over the last month, I feel like he texts and calls a lot less and almost nonexistent in some cases unless he wants me to come over...he’s done this in the past and when I have corrected him, it has gotten better. But now that he’s doing it again, I’m just over it. I don’t feel like I should have to tell you that you are behaving distant. Idk if he is losing interest or what. I did see Him last week so I don’t know if I am being paranoid or what. advice please? Should I just let him go? I’m not one to nag so I can constantly bring up this issue. I do like him a lot but I cannot ignore this feeling of this not going anywhere. Any advice would be appreciated. Thanks