Whenever Sarah Silverman visits her former boyfriend Jimmy Kimmel it’s a guaranteed good time, and last night was no exception. Kimmel asked her about her new boyfriend Michael Sheen, and Silverman gushed about how great the relationship is and rubbed it in Kimmel’s face a little: “I don’t think I ever really knew what love was, you know what I mean? I don’t think I’ve ever really been in love before, I realized. And you guys have so much in common!â€