Yesterday, I got a notification saying our Sidemail.io customer canceled his maxed-out $31 monthly plan. This is our first break up. Although I don't want to admit it, it hurt my feelings a bit, haha.
After doing a bit of investigation, I find out the churned customer hasn't really used Sidemail for a few months, looks almost like he forgot about it, and didn't need it anymore.
A takeaway: don't get too emotionally attached to your product, and more importantly, make it easy for customers to cancel. If a customer wants to cancel, let him cancel – in one simple step.