So guys, you have a girlfriend with guyfriends. It is easy to see if your girlfriend has guyfriends. If she picks up her phone and keeps conversations short and sharp and goes into another room to complete conversation. Once you find out that she has guyfriends, find out where she is at with them.
Do not jump to conclusions. Find out if she is still in love with you. She may just be flirting with other guys just to get you jealous. She may be doing stupid things just to get your attention. Women that use these covert dating tactics are very immature and stupid because it backfires most of the time.