Your H is obviously sensitive to his environment and appreciates it when it's to his taste. My H is pretty oblivious to his environment but it would give me lots of pleasure if he cared and did something about his study for example. I love it when D15 tidies her stuff and makes her room appealing. I love my brother's place. He puts lots of thought into his house and I find it really inspiring.
In this case, improving the den achieves two things: you're focusing on what makes you happy and it pleases your H at the same time. Keep doing this. Whatever the ultimate M outcome, it sounds really positive.
Has he noticed or remarked on you taking off your ring?
Me: 51 H: 52 T: 23 yrs M: 19 yrs S18, D16, S14 (special needs) PA: 2003/2004 Piecing: 2004 on Suspect H had EA: 8/2012-12/2012