My girlfriend cried because of me. How should I coax her?

This shows that your emotional foundation is not strong enough. She would rather trust your friend than you.

Call and send text messages to explain the real result of the matter and explain misunderstandings and contradictions.

Your girlfriend's thinking is too simple. Crying about something won't solve the problem.

It should be said that your girlfriend is very serious about you and is very sad to hear false information. It means he cares too much about your existence.

Look at the problem optimistically and be happy every day!