What do you do when you get angry at your boyfriend/husband?

Judith • Born n` raised in the MIA.
I recently downloaded some meditation apps and they have been helping me out so far. 👌🏼 I want to know what calms you down during an argument with your SO. 
Here are the two apps I downloaded:
IOS: 
Calm - Meditate, Sleep, Relax, Breathe
(https://appsto.re/us/QZpfI.i)
Headspace - Meditation techniques for mindfulness, stress relief & peace of mind (https://appsto.re/us/WUmzD.i)
Android:
Calm - (https://play.google.com/store/apps/details?id=com.calm.android&hl=en)
Headspace - 
(https://play.google.com/store/apps/details?id=com.getsomeheadspace.android&hl=en)