Exercise?

Jennifer
Me and my fiance use to exercise 2hrs a day 6 days a week. He still wants to go to the gym but lately I have been drained of energy. I think I've been to the gym twice in the past three weeks. I feel horrible that he has to work out by himself but I'm way to exhausted. Did anyone ever get their energy back or is there something I can do to help give me some energy? I dont want to not exercise.