Do you guys believe in guardian angels?

I was taking apart on a bike racing event on public roads in a hilly area. We rode a
up a small hill with maybe 11% grade. I was on a road bike and my buddy was in front of me. As we went up I was blowing my nose (snot rocket), when I noticed an older man on a mountain bike behind me.

Usually I look back and make sure there is nobody drafting behind me when I clear my nose because it is considered rude doing so, while someone is close behind you. This time I didnt because we went uphill on a steep climb, and we did not pass anyone and you definatly hear it when someone catches up with you.

I excused my misbehaviour to the man, because I was worried that he caught something from me.

His words where “Dont worry, keep pedaling, I am taking care”.

I found his words a bit odd and I cant translate the exact words since I m not a native english speaker.

After a few meters, I turned arround and he was gone. I turned again and he was not to be seen anymore.

This makes no sense because if someone on a mountain bike can go as fast as 2 road cyclist that draft, he should be as fast as us and only a few seconds behind us. He completely vanished.

I had to get this off my chest because I just cant wrap my head arround this.