[ The abrupt cut-off is more of a relief than anything else. It means that she won't hear him do other things that aren't thanking her.
She'll find him on the couch, partially curled in on himself with an arm tucked tightly against his stomach. The labored breaths were difficult enough to keep down during their brief conversation, and by now he's not even trying to hold back the soft whimpers as yet another mouthful of tissue disappears. The sound of her voice makes him flinch, muscles sparking into action to push him up to sitting.]