I'm expecting my gf to come to my concert after she had suicidal thoughts
Do you know why she is suicidal?
She can't deal with problems anymore, she doesn't believe she will survive through the night.
It is really rude that you care about your event more than your girlfriend. It sounds like she needs a lot of help and you should be more concerned.
I don't care and she is just having difficulties in life.
You have no idea what she is going through and she could die without intervention . You should cancel your show and help her.