My friend and I are 17 years old. She told me that she is in love with a girl. I don’t know what to think. How should I behave?

Behave just as you did before.
She is in love with someone of the same gender.

If you are in love with someone of a different gender, that is called heterosexual.
If you are in love with someone of the same gender, that is called homosexual.
Homosexual girls are also called lesbian.
Homosexual boys are also called gay.
Nobody can choose how they feel.
Some people fall in love with people of either gender.
If you are sometimes homosexual and sometimes heterosexual, that is called bisexual.
This is completely normal.
There are many different ways to be together with someone.
But unfortunately, not all of them are accepted in some countries.

Many girls and boys find it difficult to be homosexual.
Your friend probably finds it difficult to tell people.
That needs a lot of courage.
That shows that your friend trusts you.

You may not be able to understand why she is in love with a girl.
You don’t have to understand.
What’s important is that your friend is still the same person.
You might be afraid that she is in love with you.
But that usually isn’t true.
You can still be friends as normal.
You can listen to her and have fun with her.
Your friend will hopefully remain your friend.
It’s great to have a good friend.