Before her coming out

You know Hyunjoon (her name before) since kindergarten and you're both really close. You always go out together and spend the most time together and love eachother so much. Everyone found him weird because he was really "girly" except that Hyunjoon is a sergeant in special forces and he's really strong. You have a huge crush on him but he doesn't know it and you're scared to tell him. He (or maybe she now) just came out to his parents as trans and her father kicked her out. She came to your house crying hoping you'll accept her. What are you going to do?