Just know this this guy is not going to be perfect, he will have faults as no human being is ever perfect. It's important that you not create something in your mind about him being the one that is going to make your life all better either. That is not healthy for anyone to do and can set you up for some big disappointment or to expect more from someone you only know online and have never spent time with in person. Take this slowly and it's ok to have an open mind, but try hard not to put so much weight on this where you end up getting hurt.