You never know what’s going on in someone’s life. Whether they’re your friend, your enemy, or just an acquaintance, you’d be surprised what a person is hiding from you and the rest of the world — and how heartbreaking it can truly be.

This Twitter user lost a friend to suicide recently and decided to share their last texting conversation that, in hindsight, reads like a cry for help.

https://twitter.com/quagmeijer_/status/974636351634268160

Here are the full messages:

Oof. This is absolutely heartbreaking. In the tweet, he reminded people to check in with their friends and loved ones just in case, because you never know when it’ll be too late.

The fact of the matter is this: if someone you know or love commits suicide, it isn’t your fault. Even if you knew something was wrong beforehand, it isn’t your fault. I repeat: it isn’t your fault. There are some things that, at the end of the day, are out of our control. It’s unfair to yourself to carry the blame that isn’t yours to bear.

But his message is a good reminder to check in on your loved ones, to remind them that they matter, to reach out when they seem like they’re having a hard time. Just be there. Sometimes even the smallest things make the biggest difference.