You've only made 7 posts, so not quite posting too much.
You need to talk this out and post until you don't need to anymore.
I know it's hard not to contact them because you just want to believe they are ok, that they are "normal" somewhere underneath their actions.
Contacting them is all part of your "addiction" to this ride, and yes totally futile. As futile as poking a dead fish hoping it wakes up.
All contact brings is pain....though sometimes contact is what's needed to finally see there is no hope.
We all have our own rock bottom and maybe you're not there yet.
Whatever you decide to do, just know you need to fix you. It's the only way this pattern stops. You can and never will be in a healthy relationship until you work on your own "stuff"
hug