20 [M4M] California - My Asian gf is cheating on me with other guys

The other day i walked in on my gf having sex with a white guy on my bed. I was so shocked i ran out of the room and 10 mins later then came out, we talked and she said it didn’t mean anything so i forgave her but this isn’t the first time it’s happened. My gf is very outgoing she loves going to clubs and parties with her friends. She also likes when other men look at her online she likes the attention I don’t understand why me looking isn’t enough. Should I be worried or can I trust her. Please let me know.

Sorry if this is the wrong community