Friend keeps trying to burst my bubble!

A friend of mine always seems to try and make me less excited about the good things that happen in my life. When I told her I was pregnant, she called me and said congrats then proceeded to complain about motherhood and how hard it is. Didn't seem excited for me at all. And today I just got engaged! Absolutely on cloud 9. And again, she said congrats, then proceeded to tell me how stressful wedding planning is. We've always had a turbulent friendship and maybe I'm over thinking, but no one else reacts the way she does! What do you ladies think?