From Marksfriggin.com... Howard said Katie Couric is engaged to her boyfriend and he thinks that he might be responsible. Howard said the boyfriend is a big fan of the show. He asked why he's not getting married and he ended up calling her over to talk about it. Howard said he'd marry the two of them. He said that he kind of pushed for it and he thinks he's behind it in a way. Robin asked if he's going to perform the ceremony. Howard said he would if they wanted him to but he's pretty sure they won't.