Crushing on someone can be either a good or a bad thing.
On the good side of it, having a crush makes one happy and motivated towards the path. On the other hand, it is bad as it makes one act like he/she is possessed and that feeling can easily get one hurt.
There are many cases where one likes a guy but it happens that the guy is not interested but rather he is interested in her best friend.
Even though he might not tell you, here are signs that can help you know he loves your friend but not you;
1. He talks about her a lot
If in every conversation that you share he happens to be naming her a lot, then know that he is into your best friend and not you.
2. He lights up at the mention of her name
Similar to the way any normal person reacts when the name of their lovers is mentioned somewhere, that is how one can easily know that a guy is interested in your best friend and not you.
3. He keeps going to the same events as her
It is not always a coincidence for people to be attending the same events every time. If this keeps happening, then know that he is interested in your bestie and not you.