My guy friend admitted that he likes me !! ?

well my guy friend has been avoideng hanging out with me lately , so i asked him about it !! he was like : i like you.. but knowing that you're going out with someone else makes me feel sad sad , and i like to avoid sitting with you when his around !!
PS : should i tell my boyfriend about this? is it normal to tell him !! ?
My guy friend admitted that he likes me !! ?
Post Opinion