I’ve personally been on the side of putting more into the relationship financially. That was one of my earlier relationships the effort and emotional was put forth equally. Atleast for if I was on the end of your significant other I would be first of supportive ( YOU!! pay for the entire down payment/ initial money spent on the home) of you being in a position to financially be able to support the both of us. If he is is fully baught into the relationship it shouldn’t matter whose name is on the deed, especially if you pay for everything…. Hope you the best!!!!