I need some advice

Shawntae
So recently boy friend started to talk to this girl from his work and I have had my ex cheat on me more then once and it was at work so I'm very scared that it is happing once agin he tells me that this girl just needs some one to talk to and that she has a bf for 3yr and my and my bf been together for 7mon now and I just don't know how to go about this