New boy

So I went to the beach with my cousin on day and met this boy, we clicked instantly and it was fun... flash forward like a month I was at the fair with this boy and it was AMAZING💗 but the next day he was posting about being with all these girls and them all sitting on his lap, but he still texts me and tells me all these things he doesn’t tell other people. So I don’t know if I should move forward with him or cut it off.... what you do you think