It's bugging me tonight so I googled (DP is out, not looking confused over my shoulder!) and all I get it lovey dovey shite about butterflies and the way he looks at you like you're the only one in the room etc 
So, straight answer, how did you know that your DP was the one to be your DH?
What does love feel like? Does it have a specific feeling once the initial honeymoon bubble has burst or is it as simple as him just being someone you're happy to bumble along with?