You shouldn't be asking your wife, other family member or friend for money to trade. That's
your responsibility via getting a job, second job to refund your trading capital when ever you have a blow up unless the wife is rich and she enjoys giving you money...a sugar mama. In contrast, if she's not a sugar mama, eventually resentment will begin to show up in your relationship with her that can impact everything in a negative way between you and your spouse.
Also, its possible, if you had to work a job or another job to refund your own account...you may learn a lesson involving discipline when trading because you know its "your hard earned money" and you'll try extra hard not to lose it considering most folks lack respect for money when its just given to them.
With that said, I'm a strong believer that after "several blow ups"...its time to find a in person trading partner to help you when trading via help enforcing those lessons that needs to be learned to protect your trading capital and possibly become a successful trader. For example, he can stand next to you with a "baseball bat" (intimidation purposes) or he can hook you up to electrical shock treatments with him controlling the box with the red button (you think I'm joking ?).
I don't know how much money you're talking about but if trading is more than just a hobby to you...it'll be worth your time to find an in person trader to sit with you to help enforce whatever it is you're trying to fix.