i (19f) don’t know whether to be annoyed that the guy i’m talking to (19m) hasn’t told his parents about us

in january i started talking to my ex again after not speaking for 2 years, and since then we’ve been seeing each other quite a lot, and my parents know that we’re talking again (they have my location and can see when i’m visiting him at uni so i had to tell them), but his parents don’t know that we are speaking again. he has gotten back w an ex before which i think is part of the reason he doesn’t want to tell them, but we aren’t dating and i’m unsure if we will end up doing so. i don’t mind that his parents don’t know, but it makes it difficult to meet up when back home as he doesn’t want them to find out- recently i suggested going out for the day a bit further from where we live and he said no bc he thought his parents might find out he’s with me, and now i feel a little annoyed that he’s not told them- any advice??