Displaying of soft emotions

I have this friend. I've never met anyone like her before, in terms of personality. Well, before I came to the UK, all my friends and I have very similar personalities, and I didn't realise until now.

This friend is the most blunt person I've ever ever met. She is funny, but sometimes it feels forced. She's also pissed all the time, which is partly funny but sometimes annoying (to me, at least). She's also a bit show-y off-y, but I don't think she realises. Anyways, she makes a lot of jokes, which some of them are about her and her father's relationship. Her father is one of those rich, workaholic dads who show their love and care through material. She jokes about never being able to see him. She says things like: I don't remember the last time we had a meal together - all three of us. And I just... can't laugh at that. I guess it's her coping mechanism - joke it off.

Today, at school, a teacher announced that a student's father had passed away, and we were all quite :/ about it. One of my other friends said. "I can't imagine my father passing away" (as in at this point in time), which we can all relate to - or so I thought. She made a comment, "I don't really care if my father dies. Him dying is none of my business." We were all made uncomfortable by that comment, but she just laughed and continued making more jokes about it.

For a bit of background information, she comes from the same place I do, and has been in the UK - on her own - since 5 years ago. She was around 12 when she had to start taking care of herself. She talked about having to defend herself from the "mean" people. I guess this had an impact on her in a sense that she has to be strong in order to "survive", therefore refuses or avoids the displaying of soft emotions. She rarely says anything that isn't sarcastic or ironic or rude in a joking way. This, combined with wanting to be funny, wanting to make more friends by being funny, may have caused this result of using jokes as a coping mechanism. (Also, this isn't me saying she's a tryhard at being funny. She is funny, but sometimes it goes just a little overboard.)

Well, that's that.

Sparky x