As someone who likes Feng Shui a little too much I would never make fun of a medium. The thing to remember is that if she is any good at her job she is reading things from you. It is possible that much of what she told you she picked up from how you were seeing things. And, if she thought of your aunt as someone in a mothering role not liking your H she would be correct wouldn't she?
In thinking it over I actually think she was right on. She may not have gotten all the details right but she did one thing. She forced you to see the negative in your H as well as the positive. That's an important thing for you to see because if you are ever going to move forward you need to see him as he is.
Maybe that's also what she means that he wants to come back but you shouldn't let him. Your H seems like he wants to slip back into old patterns and that's not OK. I think it's entirely possible that you could remarry--that is remarry your H as a different changed man as you are now a different changed woman.
Of course this is just my take on it and it proves you can see anything you want to see if you look at it from the right angle.
Oh, and as he seems to be pursuing you a bit lately be careful not to accept all of his attempts. Make him chase you but don't run so fast he will think he doesn't have a chance to catch you.
