OK last one, it was too long to post as one post... Re "I keep thinking that real love doesn't look like this, the way I've treated him. I would devastated if we broke up but I don't know if that's more because of the kids and not wanting to be alone. When we met we were so in love, proper fireworks, the lot. I wonder sometimes where all that love and passion went." The passion may well have got drowned out by day to day living and having kids, and the low feelings you have. I do believe if you really loved each other (which ( am sure you did). You can regain those feelings but it takes time and effort.
You could explore some counselling together, try 'Relate'
www.relate.org.uk/
www.relate.org.uk/relationship-help/help-relationships/feeling-unsatisfied-your-relationship
Are you maybe a bit bored, not feeling the fun in your relationship?
www.relate.org.uk/relationship-help/help-relationships/feeling-unsatisfied-your-relationship/im-bored-my-relationship
There is lots of advice out there, I think you need to tap into it. Make time for a variety of things in life and DO NOT FEEL GUILTY for time alone or together. You may need to ensure that weekly/monthly you allow times for:
Quality you alone, quality your husband alone, quality you and your husband together,... and you get the idea... Quality you and your kids, and Quality your hubby and kids and you all as a family.
This sounds like hard work!
So you need to ensure that each of these times IS FUN. What do you all like, swimming, walking, bowling, dinner out, the park, going to see a film? You do not need to do all the things every month! who could afford that. But the occasional trip to McDonald is not too much, buying a DVD and popcorn and having a film night in altogether, or a night out just for you and dh, all these things are worth investing in.
You resent your husband doing his hobby and having fun away from you and the kids? Now imagine if you split up and you are on your own with the kids a lot of the time, how will that feel. I imagine pretty hard. So it really is worth putting the effort in TOGETHER to get back the love.
Re He thinks its strange that I hate being on my own with the kids. I think maybe he's right that it is a bit odd. I do feel resentful if I'm on my own with them. When you don't feel very enthusiastic about life though it's hard to entertain children alone. I do not think this is odd. I find playing with the kids hard. Mine are 5 and 11, and they both present different challenges. We are lucky to have a garden and a trampoline, these help a lot! But on wet days it is just being indoors and the TV is a life saver. But I do try and limit it. I tend to occasionally do craft and cooking with them, or decorate cakes, I get the blender out and make fruity drinks with them, we watch movies together with popcorn, or occasionally go to the park or the local charity shop for bargain books and read a story together. They can, and do play, together and alone without me, and I just accept I can’t do everything with them. Planning how to fill the time helps. The internet is full of craft ideas, there is lots of help out there.
You really must see the GP and get some help, then make some effort, if you can, to understand your husband's need to enjoy his hobby without your making him feel guilty.
It is not too late, I am sure, but you will need to say sorry when you make mistakes and not make him feel bad for something which is really quite reasonable, time to himself. I am sure he will need to put some work in too! It is a two way street.
Love needs a bit of tending, it cannot grow and flourish in a vacuum.