I can give you a little advice on that as I've tried it both ways ... giving him space and doing things together. What I've found is if we spend lot with together then I need to back way off.
We have had our worse fights when we have spent a lot of time together and I start thinking - Oh thank heavens, we are back to "normal" so I start pushing for just a little more. He gets stressed, feels trapped, blows up and runs.
This pattern is just now getting through to me and I'm trying to change it. Spend time then give space (kind of like what you do with friends) - I haven't perfected it yet so I'll have to keep you posted if I really have come upon a "clue" in all this craziness.
Let me know if you have any ideas as I'm open to most anything (well anything legal - so I guess choking him is out).