Hi there Minmin,
I can understand how you feel. I'll feel exactly the same way too. I think you have a reason to feel frustrated and upset so dont feel bad about feeling that way.
I think you're lucky to have found someone whom you have so much in common with. And from what you say, you two must also really love each other and have gone through a lot. You have the foundation for your relationship well laid and that's what's important.
As for the quarrels, that's what all couples go through. I used to think that other couples were all so lucky as they appeared happy all the time. I would then feel crappy as to why Im being so demanding and difficult and spoiling the relationship. However, Ive realised that couples have differences as they are 2 individuals, not clones, coming together. What's more important is how it is resolved. I guess that's where a lifetime of compromises comes in.
As guys, they are always very practical about $$ issues. Girls, normally want it all PERFECT as it's a one in a life time thingey. Im oh so guilty of that. Do give your MIL respect but in reality, dont worry too much what your MIL thinks lah...It's your wedding, not hers. Things were different in their generation. Never make the mistake of giving up certain things and then regretting it when you think back about your wedding.
For your dilemma, there's 3 possibilities. There would be some losses at the wedding as it's at RH but hopefully not too much. The hongbao money should help to cover some of it. So money saved up now till then can be used for the reno before you move in. Im assuming you're using CPF for down payment for the flat. There's more than a year till your wedding so you can try saving as much as you can from now till then. Try working out how much you both can save up in 1 year and then see if it would be enough for both wedding and reno. If you work it out and present it to your FH, he might be more amenable to the reno. You both would also need privacy as a newly married bride
Other option if your FH die die dowan shift to your new place would be to ask him to make space for you. Not very feasible to have you shift in yet there's no space for you! My FH's rather skinny and I'm small and we have difficulties squeezing into a single bed! Not possible for a good night's sleep.
Third possible option. I dont know if this is usual for most Chinese couples (Im not fully Chinese) but the bride can also help pay for stuff. Im footing the dinner (table cost alone) while he foots the other half of the total bill. However I'll recover some back from the hong baos as my parents are not asking for any. Not too sure if Chinese custom allows that.
Haha, hope you dont think that Im now being long winded
Chins up Minmin, Im sure all these would work out well in the end!