It is totally not fair. My in-laws are still living with us and my hubby can walk around buck naked and never runs into them. Every single time I shut the bedroom door to get dressed either he comes rushing in (and he has to open it pretty wide so he can get in and get the door shut) or the cat barges in (and she leaves it wide open). Because of this, the 1 time when BOTH parents were gone, I got lazy and left the door open and who should come walking back in the house but my FIL...he got a really good look at me from the waist up. Sigh. Their closing date on their new house is in February, and I can't wait. I love them but this is getting old.
Achieve your health goals from period to parenting.