Ex boyfriend issues

So hey girls I have me ex me and him got along fine we was dating than out of no where he blocked me for a year than this year I found him on my suggestion so I followed him and he followed back he started liking all my post so I liked his back than he dms me and the convo goes left should I just give up on him he doesn’t take me seriously and laughs at everything and just treats me like a fly but I’m still attached I don’t understand why here are some messages reading it to myself 🤣 I’m coming off desperate🤣