Do you mind if your girlfriend goes to the seaside with someone else to play with two men and two women? Why do I mind?

Of course I know. Love is selfish and can't hold a grain of sand. It is inevitable that you will be angry and jealous when you see someone you love with someone else, but you should calm down and talk to her. Maybe they are good friends. Going out to play doesn't mean anything. You should have confidence in the person you love, because lovers strive for trust.