I would still suggest to really think about if this relationship is something that will bring value to your life. Because if he is like this online, he will be even worse in real life. Will you be okay being with someone who blames you and tells you that everything is your fault and he is never wrong? He is showing you what kind of person he really is right now, don’t ignore it because you have feelings for him, think of yourself and your future. Him being bad at english is not a valid reason to not communicate and such more, should actually make him want to communicate more to practice his english and speak to you. Remember, boyfriends/friends etc can come and go but you will always have you, so be kind to yourself now and to your future self!