Is it okay if i feel like this...?

when my boyfriend goes out with his friends i feel jealous and annoyed so i go out with my friends. he always braggs about how much fun he had blah blah. i nvr rly say anything because i dnt want to hurt his feelings when if i said like shutup i dnt care. is it okay tht i feel like this or not.... we r in high school btw 10th grade