"In the end we only regret the chances we didn't take." So be risky because you would rather look back and say I can't believe I did that instead of I can't believe I didn't do that. I do regret that amazing chance that I didn't take.
If a person wants to be a part of your life, they will make an obvious effort to do so. Think twice before reserving a space in your heart for people who do not make an effort to stay. Need to remember this.