Jeff... as Joe says so well...
You are what you are and every single one of us has had the same experience with our wives and registered significant other domestics... or whatever!
After 46 years of marriage (note I did not say happy or blissful... just marriage...) my wife is apparently beginning to realize the same thing about ME.
One thing I have tried to do all along is to keep her happy with the things she WANTS and NEEDS first... and that would include the kids as well. So this '23T Roadster of mine sat for 20 years and then was sold... as I never had the money or the time for ME or my car... and guess what... I became very RESENTFUL over the years. The BIG problem was that I didn't realize it and felt that I needed to sacrifice MY needs and wants for the betterment of the family.
Welp... nobody in this family was starving and everyone got the best that was reasonable and college educations as well... and now...
Well... The Fiat was something she wanted 'cause she had girl friends that had them and I thought it was cool as well. One day she totaled a Honda Accord with it and never wanted to drive it again. I had it repaired, a bumper, nose-piece and RF fender, and then drove it on and off to work over the next 10 years. Then 7 years in hiatus with a bad water-pump and in around '97 I resurrected it and here I am. I really fulfilled what I was WANTING.
I guess she realized it as well that I needed to do what I liked as well and I don't blame her as much as I blame myself for not realizing this earlier. She suggested strongly that I purchase the neighbor's Corvette... and still enjoys the AIR CONDITIONED ride and PARADES and EVENTS that car has taken us to... and when I found that old Model T... she encouraged me to buy it back and was excited about it enough to drag family into the garage (on Christmas Day) to show off all the cars!
She and the family always comes first... but now I have the hobby that makes me WHOLE and GENEROUS with my time and money and self for others and other things. I feel FULFILLED, and only when you are overflowing with this stuff will you fill the same and be a better man for her and your family.
You are an ADULT, not a CHILD, and this is how adults operate efficiently. Take away your (stupid) passion (for these stupid cars) and you will be lacking and possibly resentful as well. If that happens, then at least YOU will know why.
I sit here now at 1:22 am with my wife sleeping soundly but fighting off pneumonia with all that modern medicine can provide. She'd be in the hospital if it were no overflowing with flu patients and is actually better off at home. I have survived cancer for 28 years, two bouts of chemo, one bout of pneumonia, sleep apnea, diabetes, a little PTSD thrown in... OK, a lot of PTSD... and now Pulmonary Embolisms, Psoriasis from head to toe, and some odd thing going on with both shoulders where I can't lift my arms higher than my shoulders... and the Meds I'm on make me sleepy, gain weight, and in one week, all the hair fell out of my head. My eyes have turned a deep blue as well from a light Hazel. Hmmmm! I never had this kinda thing happen before even while on chemo!
I also have 3 sporty cars all needing some FUN work, a DD that is dependable, all the time in the world, and plenty of $$$ to fool around with.
I just don't have my health or even the strength to do anything anymore... and I dunno... resentment keeps creeping into my vocabulary.
We all can't eat on Monday, pee on Tuesday... sleep all day Wednesday, shower on Thursday and then expect to stay up for the next three days and party only to do it all over again. We need to take small bites of everything EACH day in order to be happy and healthy.
I dunno if YOU are the best person to explain this to your wife... but regardless you need to take up this methodology in order to be the best you can be. Your ACTIONS will prove to be the best at getting her to understand your needs, not your words. Its my thinking though that this car and all the issues surrounding it lately has taken you away from doing the other things as well... and its become a MISTRESS of sorts, and she is jealous.
So I say all this Jeff, and I say it seriously... please consider what I have said and also that I have taken up a lot of time and computer memory to post it. We have all been there... this now seems to work pretty damn well for me... and hopefully its not too late to take advantage of the new peacefulness and sense of fulfillment that surrounds this household. Don't let it be too late for you and yours.