Am I being unreasonable?

So my boyfriend has a phone but he lost it, and I hate not being able to talk to him because after awhile I miss him especially over break and stuff so I had a iPad that I never use for him to use not forever, just until he finds his phone and lots of the time he won’t text me back or call me back. And 98% of the time he’s not doing anything and I know g this because he tells me “I didn’t do anything” I get sometimes he’s over at his friends and he’s having fun! I’m all for that!! But when he tells me I’ll brb and then doesn’t text me for 2 days I get frustrated! Am I being unreasonable for being frustrated? And what should I do??? I don’t want to take my iPad back because then he won’t be able to text me Period.... help please