The last thing Carter remembered clearly was him struggling with the elderly male that was about to slice his palm open before the attack on him. He had said his vow to Avril, which he didn't want to say.
Ariel was the one who confused him, he thought Avril was her at that certain moment he said those vows to her which he was now regretting. He would have said he rejected her just as Cole told him to do instead of the vow.
If only Avril didn't stare at him and made him lose his concentration at that time he was struggling with the elderly male to let go of his wrist, then he wouldn't have gotten his palm sliced open.
Carter wished he had the power to stop time, so he would stop his blood before it would drop into the bowl placed under his hand and finally mix with Avril's blood which would make them both, fully bonded mates.