I hate losing my interest in UT sports.
I can sympathize.
I think I've identified several potential contributing factors, or possibly the whole enchilada. But the causes are irrelevant, the outcome is the same. My interest predictably plateau'd at one point and then eventually waned very gradually, but enough to notice. Then last football season my interest fell straight off a cliff. I still watched all the games because I don't think I could not watch them, but I watched far, far fewer of other teams' games than I have in years, and I cared almost nothing about the outcome of our games, or the run of play during them. It was more like fulfilling some mildly pleasant obligation. "Hmm...we won that one....good for them, I guess." Or, "Hmm...we lost that one....too bad for them, I guess."
Me from 10 years ago wants to punch me in the nuts, I can sense it.
At the top of the list, I suspect, is football was once a very social thing for me, and it's not anymore. The amount of space in my life it has the ability to take up is directly proportional to the amount of analyzing, dissecting, and good-natured smack-talking I do with other fans. And more and more that's not a thing any longer.
The good news is I no longer count the days until kickoff and that makes summers a lot less tedious.
The further good news is that by the time UT kicks our ass in 2019 and 2020 I may not be watching at all. Except for that my cute little UT-fan gf has never been to a Longhorns game, and I'd like to take her sometime if I'm able, so that might be a good one to shoot for.