Going dark is only a form of manipulation if that is your reason for doing it. It is also full of expectations on how you expect him to react. To be honest, after 2 years, 2 weeks of going dark is unlikely to make a dent. He will see it as you being sulky. He migjt temp check but after the first week of no response, he will sulk.
But you need to do this for you.
Reframe it - you are taking time for you, to get to know yourself better within the context of you without him. I bet aftet two weeks of putting him at the back of your mind, you will be lighter.
