So you gained 40-50 lbs of muscle? How much of the 70 lbs that you put back on really is muscle?
It seems to me if you had the know-how and ethic to slab on that much lean mass, cutting some weight would be the easiest thing you have done in the last 2 years.
How long/often are you walking? Looking to jog or run to cut weight isn't really the most effective way to go about it. Check out Complexes, Tabata, Hiit, or just stick with incline treadmill walking. These used consistantly, weight training, and a good diet will always result in weight loss.
So you burned more calories than you took in? You also had a decent protein intake coupled with weight training? Alright, let's uh.... do that again? This time, do a little research and prep into creating a more healthy and effective diet.
- Work Hard.
- Burn more than you eat.
- Keep the lean mass gains in mind.
- Don't let uncontrollable events in your life turn into excuses for letting yourself go. Adapt! There is always a way.
Others here will recommend you keep the current caloric intake, but with more balanced and effective macronutrient numbers and start pouring on the lean mass through some serious lifting. This will effectively lower your overall body fat %, build strength and size, and will increase the rate of metabolism.