This is coming from a 47 year old. I was married the first time for 16 years, had 4 sons, btw. I am at almost 6 years with missus no.2
Now, first, I am going to believe you that the gear costs little or nothing. Second I am going to believe you that the fallout with your family is not your fault. Third, I am going to believe that you are a butt busting hard worker at school and work -- even though you didn't exactly say that. If the above is true, then listen to what I have to say --
RUN! Do not walk to the nearest exit. I was married for 16 years to a control freak beyond anyone's ability here to comprehend. It was hell, every day. But it started slowly. Then with each kid, I was more locked in. (I got custody of 3 of the 4 -- I was an involved Dad).
It started soon after the engagement. I had a pet snake -- just a little corn snake -- had it the whole time we dated. Had to get rid of it before moving in together. "You wouldn't let a snake be more important..." Everyone said oh yeah no big deal. But then the next "little thing" all salt shakers thrown out. Then only beer on one night of the w/e, then and on and on and on. I gave the boys their bottles in the middle of the night and the w/e, so she could rest -- always under the threat of the big ultimatum. And it got worse and worse. Because as I learned later, control freaks get off on CONTROL. They don't care about the results or the reasons. They just want to see you conform to their will.
Right or wrong, you were pursuing this with her knowledge apparently as long as you dated. She would not demand that you change unless she wanted to control you. Not change you, control you. Say yes and you will be one step down the road to being an emasculated pathetic excuse of a man. I know.
Now, there are good supportive women out there. And I am happily married to one now. She supports my activities, she helps budget for them , and she gets off on the results. This is not to say that we do not look ahead and make joint decisions, such as we have to watch the funds starting in the fall with another in college. But we are always working together to find a way to make things work.