Time is the most precious thing which you can give to someone. Make sure that person values it and respects you for the same.
Ask the value of time from a racer who didn't win because of a microsecond
or ask a Cancer patient who is dying everyday
Think of a person who spent all his life in saving money and the day he retired, he died.
Think of a mother who waited for those 9 months to complete and the time her baby was welcomed to the world, she died.
Think of a wife who was waiting for her husband to come back from work, and that her husband never came back.
It is very important to value right people in your life. Appreciate the time which they give you. And most importantly Never over Value wrong people.
You know what is that one thing which even the richest person on Earth can't afford?
You guessed it right, it's time. When the death comes, would you be able to purchase even a single extra second from god?
Even if you spend all your income and sell off all your assets, you won't be able to purchase that carefree smile which you used to carry while going to school.
The laughs we shared in school days, the stupid pranks we played on our college friends. The anger of not getting your favourite food in your school lunch box. The sadness of your best friend leaving the city. The joy of meeting your old friends again. The feeling of falling in love for the first time. The nervousness of saying that "Hi" to that special one. The fear of falling from the cycle, the excitement to go for a first ever night out.
All this is gone, exists in the one corner of your heart guarded by your busy life and in the greed of money.

Time is too precious to waste on someone who doesn't respect it.
The time you realise that one person isn't respecting your presence, make sure that your absence is what you give them.
All our life we run after one person and ignore hundreds of other people who cares for you.
We wait for hours and hours just to meet or talk to that one person whom we love and ignore all of them who loves you.
Next time ask yourself,
Is it worth it to give this much time to someone?
Whether they deserve your time or your absence is all what they are worth of

And at the end, Don't over value wrong people because once you start doing that, congratulations, you just messed up your life