Get out of there.

You can't let this happen. You've worked too hard for all that you have to let this girl jeopardize it. Well, you suppose that you didn't work that hard, but you worked plenty hard enough. You shut off the water, grab a towel from the rack and wrap it hastily around your waist.
"Booo...." Tara's voice has a mocking tone to it, as you awkwardly move past her, grabbing your workout clothes from the floor. "What a gyp."
At the door, you fumble at the handle. Why are your hands shaking? "We're going to have a long talk about this later, young lady. I don't think you'll be coming around much anymore." Tara scoffs.
"I've got Jenna and Jared wrapped around my finger, James. Your precious wifey loves me, and thinks I'm an angel." She put on such a face of innocence and youth that you'd be forgiven for forgetting what she had just been suggesting. "But go on. Have your boring life with your wife who can't make you cum." How the fuck does she know about that?! "If I really wanted it, I could have you eating out of my hand, big boy." You slam the door on the last of her words, shaking with rage, and humiliation. You turn from the door and head toward the stairs to go to your room.
When you push open the door, you hear the shower running, still. Jenna's still in there. You can see her fuzzy outline through the smoked glass of the shower door.