Help!! Boy troubles

I’ve been speaking to this boy on and off since August, we’ve met, slept together etc and I’ve began to really like him. He’s met my parents and I thought that meant something. We haven’t met for a while and I can tell something is wrong. I said to him “is this a dead thing now or?” And he said “no I’ve just been really busy” and I put “ahh okay well maybe you could try find some time to see me soon?” And he didn’t open it for a day then when he did he ignored it. Shall I message him again? If so what should I say? Some people say boys need time away then they come back - I just don’t know what to do. We’re not together it was just more a friends with benefits thing but I have grown to like him. Please help me.