One of Simon Cowell's nicknames is "Mr. Nasty," but he's revealing that he has a very sensitive side. Simon Cowell is so in love, he tells fellow Britain's Got Talent judge Piers Morgan all about his new love, Mezghan Hussainy.

Simon's interview airs this Sunday.

On lust vs. love: "You confuse lust with love, you know, when you're in your teens and stuff like that. It's a difficult thing to describe other than you know it when you are. You just know when you've found somebody special and I feel very, very happy."

On having kids: "The thing about kids, it's like marriage, you know you have to believe you're in something that you're in for the long term – a hundred percent."

On making it last: "You've got to really, really like somebody because there's a thin line between love and hate. As long as you can retain that chemistry as well then it [is] the most incredible feeling."

It's amazing how Simon has turned into some mushy dude that we don't even recognize. I totally agree with him about everything he said in this interview, especially the "It's a difficult thing to describe" comment. There's just certain things you say when you're in love like the "I can't describe it! I don't know what it is about so and so but..." type of stuff. Whenever someone starts placing an emphasis on how "nice" someone else is and how they "love" someone instead of saying they're "so in love," I think they're a danger and denial zone. Love is a total hijacking of all the senses and nothing makes sense at all, you just have to go with it like Simon is.

I love these two together. Simon is so serious about this chick and it's adorable.