Should i be worried about paying for boyfriends house

[Centaurpede]

So, I live with my boyfriend in his house, we are planning to move into our own one in a few years. He wants to do up this house and wants to share costs of doing that. I have enough to share costs comfortably but I would rather keep the money for new house which would actually be mine too. Aibu? Or should I set a limit on how much I will spend on this one?

If you are truly confident in this relationship and IF any money made from the sale of his house will be FULLY used as part of you buying a shared property, jointly owned...then it could be viewed as a mutually beneficial project. But you have to be really sure about that methinks!

OP would love an update on this @Centaurpede

A few weeks ago, I told my bf if he wanted to move into my place long-term we'd need a cohab agreement (but that he was welcome to stay with me for the rest of lockdown).

AFAIK he's not looked into it and certainly hasn't mentioned anything about it!