Boyfriend postponing buying a house together
I have been in a relationship with my boyfriend for over 4 years, I am 24 and he is 25, and we have agreed that we will save up 1/4 th of a place each, hence, we will have half the place in cash, loan the remaining half together and buy a place together in 2 years time. However, all of a sudden he decided that he wants to buy an apartment alone as he said that the prices are on the rise and that they will be ridiculous in 2 years and that he wants an investment.
He suggested that we can start living in it until he gets the required papers to be able to rent the apartment and until he finds someone to rent it and then he rents it and after 5 years sells it and make profit out of it, however, I made it clear that I do not like the idea as it is stupid to live there for say 6 months and then when he starts to rent it I go back with my parents (since we both live with our parents at the moment) as I would have no say when he rents/sells it if it is all in his name. Even though I voiced these concerns he is going ahead and viewing apartments alone and even took an architect the second-time round once.
After I pulled a huge fight he told me that he will just buy it as an investment and sell it in 5 years and then we can buy one together as he cannot buy one as an investment and one with me since he only has a small amount of money saved up and will have to take a huge loan to even buy one alone. I know that I can buy my own place in the meantime but I am feeling betrayed and I am on the verge of ending the relationship since I feel that it is unfair that we were saving have agreed on buying in two years’ time together and he just goes on alone and postponed that to 5 years since in his opinion "we can wait" and if he "does not invest now he never will with a place together that we keep for ourself."
Furthermore, I cannot understand the whole thing since we would still have to buy our house while the prices would have probably risen even further in 5 years rather than in 2 years and I would have to fork out even more money since the profit from his investment will be solely his. Having said that, I do not want to be controlling and make him drop this idea and have him regret it further on. Am I overreacting or am I right for feeling betrayed and left out too?