You say, do not put too much trust in someone, because it might end up with disappointment later on.

You say, do not put too much trust in someone, because it might end up with disappointment later on.

You say, do not be too happy when given a surprise, because it could later in the end end up with sadness.

You say, do not be too sad if someone abandoned. Apparently you have a great way to leave. Ask not to get too sad when left out, then decide to go with another person.