be held partially responsible since he knew I was driving and wouldn't stop texting me?
Probably not---you are an adult and should have ignored the texts while driving and don't drink and drive!!! I hope no one got hurt.
AS far as these facts, no crime is apparent. Perhaps there are more facts.
Since you can turn off that phone, unless he was threatening you and following you, to create a necessity defense of escaping the area, your domestic issues will not help.
