Should I give up?

Back in April I started texting with a kid I had a crush on who I worked with a couple of times (we both work at McDonald's just different stores). He imitated it by telling a coworker to give me his number. Less than a week after we started talking his ex gf came back into the picture. He told me about t right away which made me think he thought it would affect me. Well she ended up leaving him again and it really messed with him. He quit his job but we continued to talk and I did everything I could to help him through a tough time until he fell off the face of earth which I later found out was because he had a new gf. He respected her and didn't talk to other girls while they were together so we left things civilly and I told him I would be here if he ever wanted to talk or hangout.