As far as the techniques in Distance and Pursuit, I am worried that being uninvolved will reflect my past behavior over the last year. I haven't been supportive of his new job requirements and have already been distant from him. This weekend, I really just focused on being positive when engaged with him. I wish I could take some time off of work and get a grip on this...
It's okay to be positive when engaged, but you still maintain some distance for yourself. In other words, you do not go looking for him, asking him a lot of questions, etc. If he seeks you out and wants to talk about things, that's one thing and is not considered pursuit. It is called being a good listener and validating him.
If he pulls away from you and remains distant, do not pursue him by trying to engage him conversations or activities.
Distance and Pursuit are not tactics to win your h back. It is a normal pattern that many of us get into and the only way to break the cycle is by not playing this "game" w/them when they distance themselves from us.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.