Splitting finances in relationship

I've been with my partner for 6 years. At the moment he earns a little more than me (a few hundred a month) but we're both on fairly low salaries. He isn't as good at managing his money as me and has a more expensive lifestyle and I've been happy to let that go and split rent/bills/etc down the middle.

Pretty soon we have plans to move. The move will set me back in my career but be great for his career. I'm happy to do it, I'm excited to move and right now only one of us can progress career wise and it makes more sense for it to be him and then me (given our respective fields). We are also planning to do some travelling in a years time.

The issue is that when we move he is going to be earning significantly more than me. He will probably be earning double what I do. I've said that I think we should think about dividing our finances more proportionately but he is furious and telling me I'm being entitled and selfish. My idea would be that we have a joint account we both pay into, and it would maybe be 60/40 or something, I don't expect him to pay in double what I do, but a bit more to represent the extra he's earning. Then that money can pay for rent, bills and travelling eventually. We'd both be left with disposable income for ourselves so we could make our own choices on clothes and personal savings. He thinks that providing I can cover my living costs he shouldn't be contributing anything. He says he would be happy to think about paying a bit extra towards 'fun' things like meals out or paying more towards travelling but he wants to be in control of it and doesn't think it's fair to 'give me his money'.

His idea makes me really anxious as I feel like if all my money is going on living costs and I have no disposable income I don't want to be in a position where I have to ask for money to buy new clothes or something if I need them. I also don't want any meals out etc to be well he's paying so he chooses when and where we go. I also feel like if we got to the time we were planning travelling and it was a case of him paying £3000 and me paying £500 that would feel extremely unfair and it just wouldn't happen... whereas if we just contributed steadily and had a joint pot it would feel more fair. I also feel like at whatever point I was able to save any money at all he would immediately refuse to pay for anything which will mean I'll end the year in a bad position financially while he'll probably have several thousand in savings...

I've tried to tell him that splitting things this way is really normal and we've been together SIX YEARS and I'm putting my career on hold etc but all I get is that we're not married, I don't have to come (pretends he wouldn't care about going from living together for 3 years to LDR) and I'm selfish for expecting him to give me money so I can save for nice things.

Am I being really unfair?

I think it depends on each couple,what works for one doesn't work for others, despite my income being below my partners and is likely to always be, until we have kids (even once we're married really) then I want to split everything 50/50 if i m in the situation i can afford to regardless of having much disposable income left afterwards as i just dont feel right spending his wage on anything that isnt shared.
However, in your situation you are making a career sacrifice for him so i d understand you expecting something in return. Also with his not so budget lifestyle, if that is directly causing the bills to be higher (for example fancier food then i would think it wrong for him not to pay for that, for example i dont eat fruit at all really so my partner pays entirely for that or if he wants a product that isnt from a value range:P ) then he should increase his share.
I would be asking him, if he would feel different if you were married (and how he plans to finance kids, if you want them)?

I wonder how this will work out long term. I guarantee he doesn't want to go travelling without me as I won't be able to afford it (obviously I could move back home with my mum and be able to save if I didn't live where he needed to be). What's going to happen when we start looking at buying a house or something? Is he going to pay the deposit himself and if so does that mean it's only going to be his house? It just feels silly for me to be living on the breadline while he stashes away thousands of pounds...

Yeah he doesn't incur any costs for me with his lifestyle, it's more expensive hobbies, he buys lunch out every day, buying coffees etc. If anything I eat more expensive food but like you I currently buy any of my food myself. Neither of us want kids and he's said he'd happily split things if he was married to someone but we're a long way off that... maybe we're just in different places I certainly wouldn't want to get married until we're both settled career wise but that's my only real barrier...I think he wouldn't even consider it at the moment...