Your Mead will not spoil if you open the airlock and use good sanitation practices. There is some risk of introducing some bacteria or foreign matter. Just be careful with your sanitation and be sure to not let too much head-space develop. Oxidation as with wine is a concern for Mead.
Agree with all of the above. I have had Meads at 60 days be perfectly drinkable. Also have one currently that has been bulk aging since November last year and is nowhere near drinkable.
With that said every Mead I have ever made gets better with age. A "drinkable" Mead at 60 or 120 days is Good to Very Good at 6 - 9 months, great at a year to 18 months and excellent at 2+ years. We all have differing pallets, tastes and experience and what holds true for me is my personal preference and may or may not hold true for for you.
If you can control yourself, open a bottle each 60 days and note the differences as it ages. I have done that with a few Meads, currently have four Meads that I only have 5 or 6 bottles left. The plan is to open them one per year for the next five years just to see how / if they improve over time. (Not sure i can as they are very good now.)