Am I just cry baby with them?

Li

I’m not emotional person at all. I rarely cry or even feel mad. I’m pretty good hiding my emotions even If I do feel those things. People tell me something sad I tell them it sucks I know I should feel sad for them but I can care less. When it comes to my nieces or nephew I’m totally different person. My sister can tell me my niece is sick I just wanna cry I don’t understand why. I don’t get my feeling hurt easily but my niece told me she didn’t love me the other day I just wanted break down I know she only 4 but it really upset I don’t why. I feel like this when it comes to them. I don’t feel like this with any one else in my family. I feel pretty weak tbh