Chemical Warfare or Anemone Love...?

[Pier Pressure]

Hi, guys.

I have a small GBTA as well as a small (but twice the size of the green one) RBTA that I just picked up at Golds. The GBTA has started to "bubble", which he has never done before I put in the RBTA. These two have slowly been coming together in the tank and now they are both right out front and touching. Their tentacles are literally woven around the others' on one side and do not seem to be damaging each other at all.

The little white crab I have has tried to host both, and now he seems to be kicked out of both entirely if that helps.

Anybody seen this happen or want to hazard a guess as to what is going on? Truly bizarre and before anyone asks I do not have any pictures sorry to say.