Is life a game.

Went out to purchase some stuff at evening. Couldn't find what I wanted so started to another place nearby walking. Then realised better to go on my bike and when I went there saw this girl. Never seen a girl so beautiful (beauty is subjective). But didn't have the courage to talk so just left from there once she was gone. Now all I am thinking is did destiny lead me to an opportunity and I didn't take because if i just walked to that place may be I wouldn't even have seen her. Is life just a game where we have infinite number of story lines for one single action.

Now I only have regret.