@inbetweener,
There is no "right" amount of time for someone not becoming involved.
Do you really want to? I think you do, otherwise you would not have asked.
Become more mindful of where and what you are doing. There are probably lots of girls around, but you are not seeing them. Pause, and take a look at your surroundings.
PS. You can tell mom the right one has not come into your life.
That usually quiets them.