Did my best friend sleep with the girl I like?

My best friend has a girlfriend and he cheated on her with another girl. His girlfriend he has rn is the girl I confessed my feelings for but she turned me down. He told me that he met a girl at a grocery store and that he got her number. When he came back to my house he had a hickey and when he told me who did he sleep with he said "don't worry about it". I don't really trust him because Ik he would choose the girl over me so I don't really know.

Did my best friend sleep with the girl I like?
Post Opinion