No

She knew, when she did what he wanted, there was no way back and the possibility to get addicted to a cock like that was definitely there. That would mean she wouldn't just cheat on you just one single time. She was already craving for his cock and she never felt it inside. How would it develop if she felt it inside her? With the tiny bit of resistance she had left in her body she brought out a quiet "No!" out and pushed him away as her legs went back to the ground. She fixed her swimsuit and just left the cabin, leaving him with a dumbfounded look on his face. From distance she already saw you and the two girls return. If she just knew what happend between you and Leyla, her decision would have probably be different. All four of them returned to their place at the same time. You and your wife slightly smiled at each other, possibly because you both felt guilty. As you laid down on your towel, your wife was watching the cabins all the time. He didn't returned to his place yet. Maybe he was jerking off right now and just the thought of him stroking his big meat was almost enough for your wife to go back to him and give him what he wanted. Just when she thought off really getting up he left the cabin and went back to his place. He was definitely looking in you direction, but not at your wife.

Sorry for the delay. Had some pretty hard weeks at work.