What would you do if your girlfriend....?

Had a reputation for being alil "eazy" evn if you never hit yet? U proli wont belive me but this is for my friend,cj, not me. Were both new to our school & already have gfs. I knew mine prior but his is new. Shes light skin, short, long brown hair (i mean CRAAAAZY LONG) hazel eyes, dimples & freckles. Theyve been 2gethrr like 2 months & dey just now started kissing.(evn doe he"d usually kissa girl da dat dey went together,like me) & anyway, ppl say shes kind of a ho & idk, I see her walkin with other guys alot & she hugs on me alot, but I nvr gave it much thought. Now ppl r coming 2 cj saying hows she sats shes single and stuff. One guy said he ate her out!but she REALLY acts sweet & innocent! Like really! Wat shoulf I do & wat would u do?? I dont trust her lol