@ala2014,
Just personal experience. If things haven't worked out before, they usually don't when you try again. I don't know if we are doomed to repeat the same experience with the same person. Maybe we are influenced by the memory.
Anyway, I don't like his failure to acknowledge his past failure. I guess it isn't a big deal in itself, but I don't think he's being honest with himself.
You can follow up if you want, and it might work out well. All I can do is share an opinion for you to use in making up your own mind.