Ok, difficult, complicated one but I'll try to explain concisely:
Been with partner for 5 years, have a 1 year old and am pregnant with second.
We're moving from our 2 bed flat to a 3 bed house in the next month or so.
Partner has never been a career type (has always dreamt of an artistic life but never got it - ie he's a dreamer), so I earn the money. He's got a good but lowly paid job in an art gallery.
Partner is from a 'poor' family: parents were teenagers when they had their first - had 4 kids in the end. Did a great job in very tough circumstances but one thing they didn't ever instill in their kids was an understanding of the value of money. They just spend all their money every month (and more) and have basically brought their kids up to do the same. My partner has never saved a penny and is only now (because of me) beginning to see that it's important and is now trying (although failing because he just doesn't earn enough).
In order to move house, my parents are giving us a very substantial amount of money, which I've had to accept but feel sh*t about (I like to make my own way and have never taken money before). All the moving costs - stamp duty, solicitors etc - are being paid for by my savings. Partner feels terrible about this but, as he has nothing, there's nothing he can do.
I have to work very hard (in education) to earn the money and will have continue to work hard right up to the due date of my child and although I'd LOVE to take a year off after the birth, I'll have to go back to my very high-stress work environment much sooner than that.
We need a new boiler, amongst other things, for the new house and it seems that (from things he's been saying recently), my partner won't be able to contribute to this, so I'll have to pay for it. He's told me he doesn't have the money for a holiday this year, so I'll have to pay for both of us if I want one (which I really do).
My partner (and his siblings) have started giving their parents money every month because they feel they haven't got enough to enjoy themselves. To me, this is because they spend without reference to what they've got and take no responsibility whatsoever of their finances. And because his money is so tight, I literally can't believe he's doing this. It makes me feel depressed and that I've made a terrible mistake choosing him as a partner. I'm scared about this feeling.
So, my question is: Am I being unreasonable to feel resentful that I'm shouldering the financial burden here? Or should I appreciate (which I do try to do) that my partner is doing his best with a small amount of money and trying to look after his mum and dad too (who've had a tough life). Should I accept this? Because I'm from a typically middle-class 'look after your money' type family, I worry that I'm being sort of tight. But I can't help the feeling that I get every now and then - it just bubbles up. Self-pity and resentment. Which is no good for our relationship.
PLEASE HELP.