I think you said it yourself. You get older and more things fill your time. Seems like you just enjoy fishing and I know myself I got to the point where I was fishing so much it became more like a chore than a hobby. I think with age and a little more "life wisdom" under my belt I realized I can enjoy the same things without making myself suffer through an all nighter (I dont do well without sleep
) The DRIVE to fish is still there. Just not the "I have to be a maniac about it" part. I truly think I burnt myself out on fishing. I used to love freshwater fishing but turned my nose up at it for the most part during the "maniac" years but have found myself loving it once again....because now its just fishing that I want, not just catching the allmighty striper. Yes Clammer can hate me too but I love a good bluefish blitz and I am confident enough now to openly admit it.
As for winter I have my winter sport. Even that too started to get a bit stale for me at one point. But alas I bought a new sled and went back to riding in my favorite place. Suddenly my passion for it was renewed and refreshed. Maybe even stronger than before!
I wouldnt sweat it if I were you. Chalk this one up to just simply that we all change throughout life and so do our desires.