I'd still say he was treating her with kid gloves (by comparison to everyone else anyway) as Devil Hulk has shown no problems going for the gamma drain on most other gamma mutates.
Hercules hurt his knuckles punching Hulk, and he was alright even after YAAS Queen Supreme Thor of Thor's Wow-Isn't-She-Just-So-Thor Jane Thor (Who ismost definitely Thor) gave him a straight smash to the chest he was in pain but unharmed.
Dude has shown plenty of durability.