I don't get from where you think that Gase hates Adams. There hasn't been even a story about that or a hint of evidence...
Doesn't matter whether Gase likes him or not.
Adams had some hard feelings at the trade deadline, and now he's campaigning to play with Dez Bryant. It would be nice to say "Hey, maybe Dez will come and be a nice weapon for Sam" except Dez pretty clearly wants to return to Dallas. Weird, in a total coincidence, the Cowboys are who Adams said he'd happily play for.
Nothing to see here, though.