How Slow is Slow?

Sometimes when starting a new relationship, one party usually says, "Let's take things slow". The question then becomes, how slow is slow? What context is that meant to be in? Does that mean get to know one another before becoming intimate? Does it mean we only have one date a week? Does it mean not meeting friends or family until several months have gone by? 

The real question is, how long do you try to hold on to someone after "taking it slow" starts taking forever. You share your feelings, talk about the small things, work toward long term and the other person is still saying "I want to take it slow with you". Months have went by and you still haven't met their friends or family. Are they embarrassed to show you off? Are they scared their family won't like you or are they just not sure they want to be with you? 

The final question and though is, how long do you keep standing by? You want to be with that person. You have shown and told them on multiple occasions you wanted to be with them. You wanted to build a life and a future with them. You not only say it, but your actions prove it time and time again. How long do you keep trying? How long do you let you love seemingly fade into thin air...