what should I do

Hey guys a few weeks ago I started talking to a guy and I started liking him also . He would always be touching me and he would be like "put me on" but I would not take him seriously 😒 last time we were texting and I asked him if he had other girls and he was like "no I don't got hoes" but now a girl told me that he used to text my other friend and that he even envited her over to his house and they also have a class together the thing is that I asked him that WTF was going on between him and her he  denied everything that he doesn't know her and that he never talked to her so who do I believe 💔💔🤷‍♀️😪😭