I will try to explain everything in my question because I want to hear answers from people who are good in this. What should I do?

My crush is also my best friend (entj) and i am infj anyway maybe not all of you know what is that. It's called (mbti). Anyway she really cool person and i love her sometimes i think she likes me back but we don't tell each other that. We are good together but when I text her on whatsapp or insta etc she always gives short answers for everyone not just me. If it's important she answers and explain to me my question.. And she is like never online you can't see her online anytime. Before you answer me if you want to know more little bit about something tell me.
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Not sometimes i forget to put a dot after her... It should be like ( her. Sometimes i think she likes me back etc)
I will try to explain everything in my question because I want to hear answers from people who are good in this. What should I do?
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