Kurt remained companionably quiet, realise Santana would need time to process the things they were talking about. He knew if the shoe was on the other foot, and Blaine had been the one cheating on him, he would want and need to know. He wasn't sure they would survive it and it would crush him if it happened, but it was only fair, no matter how hard it would be, that Santana told Brittany so they could deal with the fact their relationship hadn't turned out they hoped it would. You make adult mistakes, you had to deal with them like adults or you would only make everything all the more worse. Of course, there was a chance Santana wouldn't tell Brittany that particular fact in breaking up with her, but that was Santana's choice to make, not Kurt's. "I don't think you took advantage if she is sexual to start with, darling. She was even pretty full on with me that time I was... doing whatever it was in a painful amount of flannel. You talk about Brittany like she is some sort of wilting flower. She's far from that. She's still a slut, she'll tear you down for her own gain. You need to drop the BFF blinkers, darling. Brittany's not a child. I'm more innocent than she is."

Now he just watched her in concern, and his hand tightened more around hers. "You need to talk to her. You do. How do you think my life would have turned out if Blaine never told me how he felt about me? If he just shoved it away and never did anything about it again? It would never have been near as amazing and mind-blowing as it was. We've established Brittany isn't The One, but what if Quinn is, darling? She hasn't even spoken to me since graduation. I thought I pissed her off, but now, maybe it's not even me she's avoiding. I can help you both."