Jacoby and Angel are probably the closest friends, so much so that I really believe that purebred cats recognise members of the same breed. Maybe the similar genetics make them smell more alike, I don’t know, but when Jake came home for the first time, he and Angel were playing together by the end of the weekend.
But when Jake wants mothering, he comes to Tessie. It’s not unusual for Jake to appear out of nowhere and cuddle up to Tessie while she’s sleeping and insinuate himself so that she wakes up and starts grooming him.
I’m almost certain that’s what happened here.