This is a really tough and common situation, and it's understandable that you're feeling conflicted and probably a bit hurt. There's no single "right" answer, but here's a breakdown of what you can do, along with some things to consider:

1. Acknowledge Your Feelings:

It's okay to feel sad, angry, confused, betrayed, or any combination of these. Don't try to suppress your emotions. Give yourself some space to process them.

2. Talk to Your Best Friend (Carefully):

This is the most crucial step, but it needs to be handled with care.

Choose the right time and place: Pick a moment when you both can talk privately and calmly, without distractions.
Use "I" statements: Focus on how you feel, rather than accusing your friend. For example, instead of saying, "You betrayed me by liking my crush," try, "I'm feeling really confused and a bit hurt because I've liked [crush's name] for a while, and now I know you like them too."
Be honest about your feelings for your crush: Let your friend know that you have feelings for this person.
Listen to their perspective: Give your friend a chance to explain their feelings and why they like your crush. Maybe they didn't know you liked them, or maybe their feelings developed unexpectedly.
Set boundaries (if needed): Depending on the conversation, you might need to discuss what feels comfortable for both of you going forward.
Things to Consider Before Talking to Your Friend:

How serious are your feelings for your crush? Are you just casually interested, or are you deeply smitten? This might influence how you approach the conversation.
How long have you liked your crush? Did your friend know about your feelings?
How good of a friend is this person? Is this a genuine best friend who you trust, or is there a history of them not considering your feelings?
Is your crush even aware of your feelings? If not, your friend might not have known they were stepping on your toes.
Are your friend's feelings for your crush serious?
3. Talk to Your Crush (Optional and Strategic):

Consider the timing: If you're going to talk to your crush, it might be best to do it after you've spoken with your best friend, or at least have a clearer idea of where things stand with your friend.
Be direct but not accusatory: You could say something like, "I wanted to let you know that I've developed feelings for you," or "I really enjoy spending time with you and I've been wondering if you'd be open to getting to know each other better."

Be prepared for any answer: Your crush might not reciprocate your feelings, or they might already be interested in your friend.
4. Consider the "Unwritten Rules" of Friendship:

While there's no official rulebook, many friendships operate with an understanding that you don't pursue a friend's crush, especially if the friend has made their feelings clear. However, this isn't universally agreed upon, and sometimes feelings develop unexpectedly.

5. What if your friend and crush start dating?

This is the hardest possibility.

Prioritize your friendship: If your best friend and your crush do end up together, you'll have to decide what's more important: your friendship or your crush. It's incredibly difficult, but sometimes, for the sake of a long-term friendship, you might have to step back and let them be happy, even if it hurts.
Give yourself space: If they do start dating, it's okay to take some space from both of them for a while. You need time to heal.
Don't make them choose: Don't put your friend in a position where they feel they have to choose between you and their new relationship. This will likely backfire.
6. Focus on Yourself:

Distract yourself: Spend time with other friends, pursue hobbies, focus on your studies or work.
Remind yourself of your worth: Your worth isn't tied to whether or not this one crush likes you.
Learn from the experience: This is a tough lesson, but it can teach you about communication, boundaries, and navigating complex social situations.
In summary, the most important thing is open and honest communication with your best friend. Be prepared for a potentially difficult conversation, and remember to prioritize your well-term well-being and happiness.

Jarvis, jork it a little.

thats tough
try n look better than your friend

are you both guys

yeah ggs your love life is cooked they gonna go out with the friend

vro...
just start a bromance with yo best friend
they'll ignore your crush
boom, their yours!
(Do not take me advice, i suck at relationships, i am not a good sorce)