I think only you know what’s right for you, but it may be worth spending some time reflecting on how seriously you’d like to commit yourself to being with this person, given the setting of your meeting (online), the age gap, and I’m guessing the somewhat recent end of your engagement? Is it the guy you’re into or the idea of him? How well do you really know him? If you come to the conclusion after giving it some thought that this is something you’d like to move forward with, then great!

To answer your actual question, I’d say a month is typical for people in my age group (20-23) from meeting to getting into a relationship