Citibank closing my AAdvantage Mastercard account by not is issuing new card when current one expires

My AA Mastercard is not being renewed come June when my current card is set to expire. It’s closed for having been over the limit which I admit I am guilty of. The minimum payment has always been met and I was late once (by accident/oversight) and I paid it immediately once I noticed. My question is has anyone else gone through this scenario and did they close all your other Citi Mastercard/Visa, such as Double Cash, and store cards such as Home Depot and Macys? I have a Citi Home Depot that I use very little and pay off in full and a Macys that I owe about $200 on. My credit report has one card showing over 30/60 day (Issued by TD Bank) that is set to fall off as a hardship payment plan will be completed in July. Aside from that, everything else is good and my FICO 8 score is in the lower end of the good range.

My boyfriend is going to add me as an authorized user to two of his cards that have a zero balance (Capital one and BOA) in the hope this Citibank closure doesn’t cause too much of a change in debt to credit ratio on my credit profile. He rarely uses those cards and carries no more than 5% to 10% balance if a balance at all. Aside from the dip caused by age of new credit, I am thinking it may work out in the end. I am back trying to recover after we had a major accident and a job loss. Despite all this, I still paid the minimums and timely. I also recently paid off a large car loan when I sold one of our vehicles.