I was seeing this guy for about two months then he said he bought me a heart shaped necklace, but then he said he would text me the next day and we would hang out but he never did, then i tried texting him that night and was like did you forget about me? and he said nothing, then I text him the next day and still got nothing. and On his facebook it says he is single now?? How can someone just up and leave and not tell me?? Did he even buy me a necklace or was that a lie??

Should I just forget about him and act like I dont care?? will he come crawling back??