The only way for Cuddy to come back is if Wilson dies, or is on the verge of dying (I'm not that mean).
Chapter 1: A series of unfortunate events
James Evan Wilson is dying. His only remaining liver has been deteriorating for the past couple of months. He was found lying unconscious in his bathroom, and was sent directly to PPTH. He was diagnosed with hyperacute liver failure. He is currently under hemodialysis but he still badly needs a liver transplant. For that he needs his medical proxy to sign off. Unfortunately, that medical proxy is not his best friend Dr. Gregory House.
Lisa Cuddy, who is presently living in New York with her mother and her daughter, received an alarming phone call that same day. Unbeknownst to everyone, Wilson listed Cuddy as her medical proxy, and a person whom to notify in case of emergency. Everyone else assumed that person would be House, and so no one expected Cuddy to head off to PPTH to visit her dying friend. Deciding she should leave New York, after she received the phone call, Cuddy left her daughter Rachel to the care of her mother Arlene, she had one final sigh, bracing herself for the chaos that is going to ensue upon her return, before getting to her car and driving straight to New Jersey.
Pure and utter chaos would be the last words to describe the scene unfolding by her very eye. Hell would be an understatement. Wilson is lying on the hospital bed inside the ICU, still unconscious, a respirator stands by his side, his heart monitor steadily beeping, and he looks pale, like he's shrunk half of what his normal weight was. It seems to her, that Wilson is getting thinner by the minute. She can't bear look at her dear friend like that. What's actually worse is the battle she is witnessing inside the room.
"I can authorize the operation. Wilson is my friend, you can't tell me to wait for God-knows-who to come here and approve" House is already shouting at Foreman. Cuddy is guessing, Foreman is trying to appease House, to no avail. House is currently being held back by two nurses. It appears that House is trying to punch Foreman.
"Unfortunately Dr. House, you don't have any right to approve. We have to follow hospital protocol. And protocol demands for us to have his medical proxy approve this. We can't even put him on the transplant list without the approval. It's my ass that's on the line here. Please understand that I care about Wilson ..." Foreman replies, trying to sound friendly.
"No you don't care Dr. Foreman, that is exactly why you are here, making sure there won't be any surgery!" House tries to move forward, but is still constricted.
"Uh-hmm" Cuddy clears her throat, finally announcing her presence before things get more violent. "I'm here, where do I sign off Dr. Foreman?"
All eyes fixed on her. House just stood there, mouth-open with shock. "You? Wilson chose you? I can't believe it".
"Well you better believe it, because it seems to me, that I'm the only one who can save our friend right now." Cuddy replied. She turned to Foreman then. "And why the hell wasn't I informed that I needed to make the decision sooner? Surely you can discern the urgency of the situation Dr. Foreman, I am very disappointed." She scolded him. Trying not to lose her temper, she stormed out of the room dragging Foreman with her. She looked back on House "You. Stay here, and watch over your friend. That's the best thing you can do right now."
House had no choice but stay. A surge of emotions overcame him, he sat down. Head bowed down towards Wilson's bed. Was he angry at Wilson for choosing Cuddy over him as his medical proxy? He's not. Not really, he realized Cuddy could make the best decision for Wilson at this point, he's just angry that the decision couldn't be made earlier. Then he realized that he missed her - no longed for her. And she finally came back. Her scent lingers in the room, and it made him shiver. Oh God how he missed her, just seeing made him feel giddy, a feeling he's never felt ever since she left. He snickered at that moment. Wilson was such a Jew! He thought to himself. His friend dealt a card even at his deathbed just so that he could match-make House and Cuddy.
His thoughts went back to his friend this time. He looked outside and found Foreman and Cuddy finishing up the papers needed for Wilson's operation. After signing the last sheet, she set her path back to the ICU. House braced himself. He was going to have the most important conversation of his life.