What the hell do you do with a hubby?

Who left you12 weeks ago saying he doesn't love you ( yet actions say different, and you see him every day)but has finaly admitted he has been diagnosed with depression and asks if i will i bear with him. I would love to but one minute he loves me, next minute he doesn't. Been going on for ever it seems, feel like he is pushing me away indirectly. Totally bewieldered, been together 22 years 2 kiddies, shall i tell him bog off or be patient. BTW can i just say i am convinced there is no other woman, i was convinced at first even before our problems began, hubby says this is what caused it, he can't be doing with accusations anymore.