My 'best friend' problems

Basically, I told my guy friend that I really liked this girl called Jenny (cause I do) and asked him to be my wingman to find out if she likes girls, if she's interested in me etc etc. He came up to me right before I had to go into an exam and simply told me that he and she had kissed. I told him he was a bitch and walked away. What do you think I should do? Should I continue to be friends with him? This isn't the first time he's pulled shit like this and he already has a girlfriend so I don't know 😩