Hold onto your heart, and hold a lot of gentleness in reserve. Someone will need to pick up the pieces. If you love someone then there is a time to watch because you can't help, and then there will be a time to step forward because it will be the time that you can help.
A hot temper can force a light to shine on things that people would like to keep dark. It can also, as I'm sure you know, break relationships before their time.
Think twice, look up at the sky and count to twenty, and be sure sure sure that what you are about to say is exactly what you should say and what you want to say. Speak out of love instead of anger whenever you can.
I know, yes, you are already there and you understand this stuff.
I wish the best for both of you.