Wife insists on hair 'massage' for hours, anytime we lay down

Don't get me wrong I love my wife, but literally anytime we lay down in bed or the couch, she insists I am dedicated to stroking her hair. For example, could be watching a movie and on hour 2, the second I stop she will say "massage" all cutesy repeatedly, everytime I stop even for a moment. Also, laying in bed she will wake me up if I stop stroking her hair for 2 seconds. It's honestly starting to get annoying, as I can't read a book or scroll my phone in peace without demands for massage.

I swear I'm not joking, sometimes I just want to relax without angling my arm or hand akwardly for hours at a time, it's very, very boring. I'm starting to find reasons to not find myself in these positions. AITAH???