It shouldn't need to be said, but some people clearly need reminding - you should be happy for your friends when they announce they're getting married.
Naturally, there are some caveats if they've inexplicably decided to pair up with a totally horrendous person.
But if your friend has found the love of their life, it's not your place to crack jokes at their expense and imply they're a loser.
One woman was left in floods of tears after a so-called friend did exactly that - and people on Reddit weren't impressed.
Spilling all the juicy details, the guest explained how they recently met up with their friend - who had previously been single a long time.

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"I have this friend, let's call her Jane. We're in our mid-thirties now but we were roommates since freshman year in college. She's one of my closest friends and I know her super well.
"And I know that for all of her twenties, she had horrendous luck with her love life and was extremely insecure about it.
"She always wanted to get married and have kids and kept ending up with douchebags who would cheat on her, or man who straight up didn't like her (daddy issues) and crying about it.
"I was always there for her through it and reassuring her how she won't die alone. But her love life kinda became a punchline in our group of friends and sometimes she'd go along with it, especially once she got into her 30s and was still single.
"She'd say like "haha yeah guys we all know I'm gonna die alone" all the time and I know she was torn up about it, but we were always reassuring her that it's not the case and she was in therapy about it.
Fast forward to last weekend, when Jane met up with all her friends to celebrate getting engaged, after meeting someone last year.
The guest continues: "This weekend we all went out to celebrate and all our friends were saying how we're so happy for her after a long and difficult road, and it was really emotional.
"For context, I'm still single, no boyfriend, and I want to get married too and so I said, "I can't believe JANE will get married before me!"
"She started crying and stormed out and the evening was completely spoiled. I tried calling her this weekend but she was hysterical and said that I didn't have to point out that she's so unlovable and it's a miracle she tricked someone into proposing.
"It's quite sad... but that's not what I meant... that's her own baggage.
"I apologized but also suggested she should talk to her therapist about that reaction and now she completely refuses to speak to me and won't answer my messages."
On Reddit, lots of people firmly made it clear to the woman that she was in the wrong for her comments.
One wrote: "Sounds like there's some jealousy going on here that Jane is getting married while you are still single. Her love life should have never been a punchline."
"It's not Jane's baggage when you're contributing to the load. It doesn't matter if you didn't mean to or if it was just supposed to be a joke: if the roles were reversed, you'd probably feel hurt, and that's why it's not okay," wrote another.
So there you go. Don't make your friend's love life a punchline, and then be surprised when they get upset!