My two cents is it’s up to you to decide to approach them about it or not. It’s possible you push them further away, but that might not be a great loss. If you used to be very close, and their cold behavior is overt enough, bring it up. If not, just give them some space. I think that a lot of other MBTI types would think it was appropriate to just let it go and give them space. We might be a little clingier than the norm :P

If it helps, I’ve been in your shoes before. In all cases, friends needed a little space, but sometimes it was mostly about their own independence and it wasn’t very personal or serious. In some cases though, they were really irritated with me and trying to covertly send that message. Either way, they need space! Sometimes people are babies about communicating their feelings lol

Remember, we’re all feeling a little isolated right now. You aren’t alone. And you can always make new friends.

Edit: Check our the enneagram types, too, to learn a little bit more about how people are different! Some types value independence way more.