1. How long have you been dating him online? (If it is within half a year, instead of talking for three days, it is very unreliable to say that you like you; If it's more than half a year, it's natural that he likes you, but it's impossible to know whether he's cheating on you and screwing other girls at the same time. I've seen such people, just gangsters who spend too much time. )
2. When you were chatting with him, did you ask him if he would reply immediately? There was not much time interval. If he likes you, he will be eager to chat with you. Whatever you say, he will spit out a few words in response to you. If you say that he hasn't received a reply for a long time, then you say that you like you, which is obviously playing with you. )
How do you feel about others when you chat with him? This is very important. Some boys always rely on, fuck, fuck. This type of boy has a strong self-esteem and belongs to a very unstable and enthusiastic boy. If you are a traditional girl, they are not suitable for you. You can occasionally say something rude or hurt your self-esteem to test him and see his reaction. If you are a gangster or a liar, you must say that they are "fuck, fuck, birds".
Also, I don't know if you are from a different place. If he asks you to meet at his home or yours soon, and the meeting place is set at the hotel, I suggest you don't go and ask him to meet in a crowded place. Then you can get in touch with him more truly. I wish you all the best!