What is worth your investment of time and emotions?

I have been processing this over the past few weeks—what things and who in my life are worth my investment of time and emotion, and how much I should be putting into these things/people.

I realized I put so, so much time into things that didn’t matter and people who drained me of energy or just used me for what I could do for them. Maybe my value system’s changing and I’m seeing things differently. It got me to thinking… what and who do others feel is worth their time, effort and emotions?

Do you measure your investments by what you get in return, or by the intrinsic satisfaction you get out of it?

Please note… I’m not referring to money at all.