boyfriend borrows phone all the time

he doesn't have one so he borrows mine every day and i know i should give it because i'm his girlfriend and i'd be a bad person if i didn't, but i find myself secretly resenting him now for it, i'm scared he won't like me if i don't give it to him but sometimes i just want to have my phone, yk. i can see it from his POV too cause the only way he can keep in contact with people is through my phone and he's superrrrr social so i get it but i also feel like i'm being used a bit and i'm starting to hate him for it. help??

the thing is he's not allowed to have one and i get it i don't mind him using it sometimes but it's just all the time