I find myself thinking about this fairly often.
My dh is a nice man, and loves the children, pulls his weight in the house, looks out for me etc etc.
But if i am brutely honest, at times i find him boring! I feel like i find myself chatting away about something i find really interesting and can feel like im talking to a brick as he seems more interested in some crappy tv programme on in the background!!
And at other times i feel like he is not the brightest either when im explaining things it can take a while to click, drives me mad!
I know this all sounds awful, my i am decribing my most irriatated moments.
I feel like if we didnt have the children i would be thinking we dont have alot in common anymore and the things that interest me dont him, and how it would be so nice to for example go off to see some historical sights with someone i could wonder round with all day talking about all the amazing facts. When i say this im thinking back to friday when i said to him about possibly getting someone to have the children when they are older and going down to london to go round westminster abbey etc as the whole building and history of it all and various other things fasinate me...his reply, 'yes ive always fancied madame tousuades (spelling)
Arghhhh god it annoyed me, not exactly the intellectual information i was looking to aquire from our trip!!
We never have sex, apart from the odd time i fancy it, i just rather not sleep with him, dont know if this is down to hormones or that its a sign we are doomed 
IT doesnt help he works shifts, we are both tired alot and we rarely go to bed at the same time.
He is argumentative when he drinks and tonight started an argument infront of the children because i asked him if he could take them to brush their teeth while i put our youngest baby to bed (it was late for them bedtime wise as we had been out at a friends) he was busy doing something else, so when i had finished putting baby to bed i took them to brush their teeth when he came into the bathroom saying, 'why cant you keep your nose out?' I was taking them to do there teeth etc etc. I responded by explaining i had finished putting ds to bed so thought i would do dds teeth so they can get to bed. Well something along those lines when he then told me to shut up.
So i told him maybe he should stop drinking stella and become a nicer person!! OUCH really childish i know and out of character but im sick of him being argumentative over such pathetic things!
Then after children were all in bed in the continued to probe me with what was that all about. I cant see what ive done wrong tonight, why does it always have to be like tihs blah blah...i conversation not worth responding to when he has had a drink as it would literally go round and round me explaining the same thing over and over.
I predict in the morning he will apoligise, say he was tired will try harder etc etc. But i feel i dont want his wasted apoligy.
He is mostly good and caring, but i feel i chose the wrong man unfortunately and he doesnt stimulate me, esp conversation wise. BUT the bigger picture is i took my marriage vows seriously! Ive come from a split family and swore i would do everything in my power fro my children to not end up the same, even if it means i dip out slightly they are much more important, but its hard sometimes, esp when we bicker around them. Utimately i still feel they will have a much better life if we stay together, plus there is no way i could provide for them, sound a bit shallow maybe but we live in a nice arear in a village near a nice school i am a sahm i can be there for them all the time. They would have none of this if we seperated. Im sure dh wouldnt accept it and make things very difficult to.
Suppose i find myself wondering maybe this is normal for a family esp with young children???
And that as the years go on things will get better, i will grow to love him again we can work together to be happy??
There isnt ultimately anything really bad about my life i just feel im not really suited to my dh 
But i love my children more thani can even express and happy to forfit being madly in love if i can form a happy household