Guys, would you let your fiancé go to the beach with her girl friends and have guys there?

Hi everyone, my fiancé and i have been together for 10 years. i recently been at home all the time since i quit my job. i finish school in October so i’ll find a new job then. my fiancé works all the time and loves to hang out with his friends. mind you, we don’t live together. i barely have any friends. i would say i have two really good friends. one lives eight hours from me and the other lives near me, but she always invites me to places where there is guys. i know, why is that a problem you ask? i think it’s disrespectful to hangout with guys when my fiancé is not there. so for example, today my friend asked me if i wanted to go to the beach today, i asked who was going, she mentioned her highschool best friend Ruben and a few other people. i said no because of the two guys who were going and my fiancé doesn’t want to go. so my question here is is it wrong to hangout with a group of people, guys included when my fiancé is not around?
Guys, would you let your fiancé go to the beach with her girl friends and have guys there?
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