ive never been in a relationship but i legit don't see what the big deal about cheating is

OBVIOUSLY if i were to enter a relationship with someone i wouldn't cheat on them bc that's an unspoken boundary

but i legit just don't really get why it's such a big deal? besides stds ofc

i know it's like, a breach of trust and people don't like "sharing" but like. why not?? why is it a breach of trust in the first place. the more i think about it the more i think being able to be intimate with only one person would be lame