What to do what to do...

I apologize if this post jumps around a lot, my thoughts aren't organized at the moment. Ok so, my boyfriend and I have been together for 2.5 years. I've lived with him for almost all of that time (I moved into his house). We live close to both of our jobs and were not looking for a new home. But! This house came across Facebook on Zillow and it turns out to be our dream home. I'm totally serious. It's everything we've ever wanted and more. We went to see it and it's just perfect. What's my issue you wonder? Well, our relationship isn't perfect right now. And I know that no one's is.. but with this new house, we have to put a LARGE amount of money down. Literally almost my entire life savings. And I'm okay with that because this house is our dream, that's why you save money right? Anyway so my boyfriend, although a good man, does not show a lot of emotion of affection, and I can tolerate that usually but if I'm upset and need to talk it out, he just doesn't do that and it makes me crazy. I'm a talker and he's just not. I'm working on trying to accept that, but sometimes it makes me feel insecure about the relationship. I tell him that and he gets really offended and says I'm blowing things out of proportion. Also, he has absolutely no savings, and I make almost 3 times as much as he does so I pay a lot more bills than he does. Which again I'm okay with. I guess I'm really scared about this massive commitment and all of my savings if our relationship is on the rocks? It's never been perfect but I've never had to commit to something so life-changing with him (we share nothing in terms of money, we have our own cell phone bills, cars etc). so if the relationship ended there's no strings attached. I don't think that we're going to break up, but no one ever thinks that, right? I don't know what to think, but our appointment with the bank is tomorrow and I really don't want to lose this house because I'm insecure over something that really doesn't warrant insecurities. 😧 .