Welcome back, Erika. Sorry to hear about your break up. Was it because of your gender issues?
Regarding your question: Lowering your testosterone level will likely cause a loss of muscle mass in time. It depends on how far you push it, and how hard you work to maintain strength. After 6 months on PM, my total serum testosterone dropped to 109 ng/dL, well below the male reference level. I've experienced a noticeable loss of upper body strength in that time. I do cardio exercise regularly, and my hobbies do demand significant arm and shoulder strength so I am countering muscle loss there to some degree. Still, muscle loss is one of the tradeoffs we have to make when we shift our hormonal balance toward estrogen. For me, personally, I'm not bothered by it.
Clara