Sounds like you need to upgrade your relationship
Men are such mugs, and I include myself in that 100%.
However its a different story re her interest which involves horses. If 100% attention isnt paid to hearing about every hoof problem, jump, fall and latest horsey rumour all hell is let loose!! Our 2 daughters are also involved with them and I love to go an see them all riding and I try to help out at the stables when I can - love seeing them enjoying their hobby. Interesting thing is that they cost more than my flying (apparently they have to all have a spare horse as well) and need daily maintainece!
Tell me about it. My ex was horse mad too. It is a totally all-consuming hobby, with heavy emotions flowing whenever The Horse throws a wobbly, which given it has the intelligence and manipulative manners of a 2 year old child, is quite often. The whole thing is well supported by an army of horse dentists and farriers of whom most drive top end BMWs, not to mention some good looking guys who "fix fences"
This part of the UK (Sussex) is jam packed with women who desperately look for a man (any man, so long as he doesn't beat them up too often) who has enough money to buy a 4x4, a horsebox, and pay for stabling or a field, etc. I fell for that trap back in the 1980s
Compared to horses, a plane is no trouble at all... more expensive though - a horse costs about £3000/year and that is if you have your own field (we had 3 acres; my ex still lives there, on my account

). If you have to pay for a full livery it is probably comparable to flying 50-100hrs/year.
I would not have gone out with another horsey woman, after that.
The funny thing is that if a man was into horses, and was essentially jobless, no woman would go after him