Push her away

You push her away. and say "WHAT the HELL! I don't want this Nichole and I don't how why..."

Nichole puts on a sad face and looks at Tim.

"Come on man it'll be fun. " Tim tries to tell you.

"Fuck you" you say and run to your room slamming the room.

"Nah Tim, go home, I need to talk to him. I'm sorry..." Nichole says.

"Ok..well thanks anyways." Tim leaves.

"Damn it, what did I do.." Nichole contemplates while starting to cry.

-Later that night Nichole approaches you with her head hung low-

"sorry i'm really worthless am I?" she says looking down. "I think I just got to carried away and , and.." she starts bawling..

"Well I overreacted" you reply," I didn't think I was that bad at sex." You both talk about wants, needs, and other junk until you decide to see a sex counselor. Eventually you spice things up enough so it all works out in the end. You may have been a cuckold for a moment but not forever.
Your relationship survived the incident and you both still love each other though you feel your wife still isn't fully satisfied.

~The END