Got the impulse to search for an old friend

For some reason, I got the impulse to search out an old friend from my long-ago days playing online. I think I may have finally found him on Discord. I sent a message to him. But now I'm not sure if this is such a good idea. I'm sure he would be happy to have me contact him again. However, I have very mixed feelings about becoming friends with him again. For both our sakes. Hmmm, what will I do?