Like holidays, birthdays are milestone moments that make some people reflect on their lives. They think about what they’ve accomplished and lost over the last year. Also, as people age, they start to feel sentimental about others who were once important to them but are no longer in their lives.
In other words, he got liquored up and drunk-dialed you. If he really wants to have you back in his life, let’s see if he does something about it when he’s sober. Guilt + alcohol yields big promises but unreliable results. Who knows, though–maybe he will surprise you.
The real question is whether or not you want to be in his life again. He already dumped you once. Are you willing to be dumped again, even as a friend? My advice is to think very carefully before going back down this road again. If nothing has changed in your lives, the end result will be the same.
Good luck. Thanks for the question.