I do try and bring things up if I feel strongly about them. I think our problem is that the things that bug us are often things we tend to think aren't important enough to mention. At least that's what dh claims and I feel mostly the same way.
I think I mainly need to make sure I'm communicating and not assuming. For example, I just started riding a bike again after many years and am enjoying it a lot. I assume my dh wouldn't be interested in joining me for a ride (and I'm 99% sure he'd say he wasn't) BUT I haven't even asked him. I think that sort of thing happens a lot in our marriage.