All valid and helpful ways to deal with the situation, Logan.
As someone who dropped the bombshell, I'd like to say that that was not the first indication to my wasband that there were issues in our marriage. No amount of giving me space would have fixed our issues with me alone taking the time off to work on them.
All my previous attempt (for almost 6-8 years) went to deaf years or only to be told that I was making the issues up when there were none. He refused to go acknowledge there was a problem in our marriage and refused to seek help. And of course, he will tell you that he didn't see this coming as he had taken me granted and never thought that I would ask for a separation.