Hello all, I'm so glad I found this place

Just a little background:
We are empty nesters both in our 50's and this is for both of us our 2nd marriage. we have been married for only 8 years.
My husband went into major depression w. suicide attempt this May (thank goodness he wasn't good at trying ), he also had the "I want a divorce" and distancing himself from everything - pushing all that he loved away. I was grateful that he is smart enough to listen when I told him he needs help and he went. he now is on Lexapro and it's doing his job and he is seeing a counselor weekly.
I love my husband more then life itself and to see his misery almost killed me back then, it was such a 180 from were our very happy life was before. I am dealing with Menopause (a nightmare in itself). There are some other major issues that I have to deal with too complicated and weird to go into at this time. My concern is does somebody ever go back to their normal self after something like this? I know he may be on this med for a while (?forever), and he really likes the drug. He says it allows him to be who he always knew he had inside but because he wore his heart on his sleeve had a hard time letting out. He now is so cool, calm and collected it's scary. Nothing rocks his boat. I told him I could be dead on the floor and he's go "hmm how did this happen"
It is like having a new husband, so different, so aloof. Will the man I fell in love with ever be back? Or should I start making the adjustments that this will be the guy and learn to love how he is now?