I am having a hard time mentally moving past the fact that it took me so long to save that $17K... I love and trust my wife, and I am committed to her. I know that paying off the debts was the best decision, but I can't help but dwell on the fact that I feel like I made it too easy and non-consequential for her. This feels like an unhealthy mindset. Any guidance for me?
That's right, a very unhealthy mindset indeed. Stop money-shaming her, shitlord. Keep your head down and keep earning money to pay off all the new debt she'll inevitably accrue in the future as well. You exist entirely to please and pay for your wife now - welcome to your new life. Consider the $17k a payment for her accepting your lowly, pathetic, male hand in marriage. She's doing you a favor!
2) We will go have her added to my current checking account as a joint tenant and have the account become OUR account.
Ah yes, very good idea indeed. Her financial history is clearly very solid, so giving her unmitigated access to your bank account seems like a good idea. Now that you've cleaned up her messes and given her a clean slate I'm certain she will turn her life around and put a complete stop to her irresponsible spending habits.
tl;dr don't fucking get married and if you do don't be this fucking guy, good god.