No reasonable explanation I can think of. It was on a blanket we keep in the lounge for snuggling under. I'm the only ones that uses it. DH sits in shorts while I snuggle under a blanket and that is our compromise on the constant difference between our body temperatures.
I have short cropped hair. Slightly layered. Have had this style for 8 years. We don't really have people over to our house and these blankets are been washed within the last 3 weeks. The only other people here in that time is MIL and FIL. MIL has very short hair too. I've attached a pic. First 2 hairs are my long and short layers. 3 hair is very obviously different. WTF do I do? Just ignore? No other reason to suspect foul play by DH.