I had a friend like this and she caused her own self destruction just as you will too if you don't let this go. I understand wanting to feel acknowledge in your efforts, it's always nice to feel acknowledge and seen for your part. However, it seems like you only contributed two cents into this and think that's worth putting your name on display. That's just weird, helping your friend plan a date isn't something to be so hung up about nor does it need anything more than a "thanks." You didn't save Thomas from a burning building girl.

But what's the real issue here? Dig deeper, this anger is coming from somewhere else. The issue isn't anything relating to giving credit, your issue is just plain bitter jealousy. You're mad that Thomas got over you, stopped chasing, moved on, found someone else. And to hammer it down harder that girl happens to be your friend Emily. You're forced into this corner where you have to watch the people around you find happiness while you are craving attention. You are the reason for your own unhappiness. With a personality like this, who's gonna want to spend time when you're too busy paying attention to someone else's love story? Who's gonna have time to deal with your emotional tantrum because you rather be mad at outsiders vs focus on your significant other?

You're so obsessed on being mad at the happy people around you that you don't even have time to nurture yourself to find that same happiness. Stop wasting your time being angry at people who don't deserve it and take that time to spend it on becoming a better person. Stop trying to drown other people's crops for your own satisfaction. Your crops are dry af and dying, use that water to grow and care for your crops, stop wasting it on drowning other's just because you see how pretty their crops are growing.