How do I know if he still likes me

So there is this boy who say he still likes me and he does not wat anything to happen to me yet again he is with a nether girl he told me that he loves me and he sometimes hugs me and all but he holds hands with a nether girl and he say luv u and all to her right in front of me and he is getting me really mad because i wanna believe he still likes me but idk if he is lying or telling me the truth i need help someone help