Would A Guy Use Another Girl To Get The One He Loves

would a guy use another girl to get the one he loves?

i have a feeling this ex of mine is using my other friend to get back at me
i rili think he still loves me but he aint admit it. he's a fool really, cuz i still love him too, but i dont want him to think i am easy this time,

but you know, i was just wondering if anyone know that a guy can do that?