Most Helpful Guy
just let him stew for a little bit. I highly doubt that your fight is the last you'll ever hear from him. Right now he's angry maybe trying to build up fear in you that he'll never contact you again so he can gain a little bit of leverage when he does reach out to you. It's a pretty immature move to avoid someone by changing your number or blocking them from calling you.
So just give him his space... The real thing to work on is why you two are having these types of dramatic fights after being together for two years. Try to work on developing more constructive methods of resolving issues.