Having problems with S/O?

We've been together for 10yrs we have 3kids, he's a really nice guy never screams at me hardly gets mad always helping out others he's a really hard working man and always makes sure that we have everything we need. Problem is that he's very conservative with his feelings like he hardly tells me that he loves me he doesn't want to get married we don't celebrate our anniversary of the day we moved in together he don't like me giving him hickeys. I know he does love me cuz he demonstrates it with actions not with words. When ever I ask him how come u never say I love you he says u already know I do, But I mean who doesn't like to get reminded of the love they have for u? I do want to get married,but he says there's no point on getting married if we're already together. Any one else in this situation? And what did u do.