I have a friend irl that is an ISTP. She gets very lonely sometimes and I want to help her feel better, but I know that ISTP's like their alone time. I don't want to be pushy.. but I hate seeing her sad. This happens all the time with her. I know she feels like no one understands her.. and I can't claim to know everything about her, but I do care about her and don't like when she is upset. How can I be a good friend to her?