I am jestinea old 20 I am unhappy

I dont know what to do my ex block for 4 months and now he unblock my number what that mean

It means the door that was locked presumably in anger has now been unlocked. And that is ALL it means - to you. I mean, I take it he didn't just sit at a bar/wherever batting his eyelashes in a "come hither" manner or dropping his hanky on the floor for you to gentlemanly retrieve for his little ladylike self the day you two first met? I would assume he adopted the normal male roleplay of approaching you and chatting you up followed by asking you on a date? That being the likely case, he knows how to chase and woo you now, a *second* time. If he's too scared or awkward to do anything other than drop his hanky this time round, then ignore-ignore-ignore and wait until he re-grows a pair. And the point where you can tell that has happened will be when he phones you. Not texts, not starts to call but then disconnects before you pick up, not "Likes" on your Facebook page, not hints to a mutual friend that he misses you blah-blah, or any other cowardly circling behaviour... PHONES. Because "I'm ready to talk to you is" as "I'm ready" *DOES*. Saying all of that - how come you can tell you've been unblocked?

It means he's waiting for you to call him. Don't do it. He's more than likey between people right now. don't chase him. I'm also interested in how you knew he unblaocked you number.