What does paroxysmal mean?

Paroxysmal means episodic/intermittent, not continuous. Paroxysmal afib can vary a lot. For instance, I have episodes once a year.
https://www.webmd.com/heart-disease/atrial-fibrillation/types-atrial-fibrillation
There are 4 different types of afib, paroxysmal, persistent, long-standing persistent and permanent (chronic).
Paroxysmal afib lasts less than 7 days. It can stop on its own or with meds.

If you have frequent bouts, as shown on the monitor, your cardiologist will discuss treatment with you. Many of us are treated with meds/or ablation. But I don't know what happens in the context of a pacemaker.

Windy, as she does, has done a great job of providing some answers for you.

Atrial fibrillation, on its own, won't kill you. Period. It can be so highly symptomatic, however, that it makes its bearer truly, and dreadfully, miserable. On the other hand, some people have no idea that they are suffering from an electrical disorder and its subsequent arrhythmia. They feel nothing. My brother in law is an example, and our church organist, another male, is the same, except he learned he had been in flutter for God knows how long...so an urgent ablation for him.

The person who would offer to try to stem the arrythmia you have is called an electrophysiologist. Cardiac electricians. These specialists can pinpoint where the extra signals are entering the left atrium and perform what is called an ablation, literally creating many small pinprick burns around the area where the unwanted signals enter the left atrium. Almost always, at least 80% of the time, that entry point is going to be the ostia of the pulmonary veins where they empty oxygenated blood returning from the lungs to the heart. During the day surgery (you be at the hospital early in the morning, and you're released by late afternoon if you undergo the surgery later in the morning...there will be at least six, maybe ten other patients there with you), the EP runs a catheter, a slim flexible tube, up your femoral vein to the right atrium, punctures the septum/wall between it and the left atrium, and then performs a series of burns around the pulmonary veins to isolate them. You won't feel anything when you awaken, no pain, except tightness where the groin incision was made. You lie flat on your back and cannot move for about four hours, then you eat, drink, and if that's okay, you walk around the ward for ten minutes. Then, your ride takes you home. It's that simple for you.

As I said, AF won't kill you. It CAN lead to further complications, though. And it tends to progress over time to worse forms of it. So the wisest of us soon realize that it needs to be strictly controlled so that the fibrillation doesn't cause irreversible changes to the heart's substrate. Drugs will control it at first, but maybe not for long. Catheter ablation, if done by a highly skilled and experienced EP, will have you free of the fibrillation for years, perhaps for as long as you live. When the heart beats in normal sinus rhythm (NSR), it is happiest and will age only normally. Left in arrythmia, it 'remodels' itself over time and its subsequent arrythmias change to something almost impossible to manage. This can lead ultimately to heart failure (really heart insufficiency....it doesn't actually 'fail').

@squizzer how frequent were the afib occurrences? And how long?

You can google that question and receive lots of info.