Moving in together

my boyfriend and i have been dating for 4 years now. we will both be 20 this year. i brought up the idea of moving in together and he got really upset about it with me. why wont he? do you think i should be as upset about it as i am? advice please!

Moving in together is a huge commentment. Maybe he is scarred of that being so young. My advice is to put a few little things of yours over at his house. Spend a couple of nights to show him it's okay, but make sure nothing bad happens like arguments or fights, that will make him want to move in together even less.