I'm really curious😂

Hey guys ! So I have a question and I would really like to see what you guys think about it because I think it's a little odd lol but anyways when my boyfriend and I are having intercourse he changes the condom more than once within every 10 to 15 mins or if I take a quick break within a couple of seconds and then when I ask him why he does that so much every time he never gives me a straight forward answer an I'm really curious😂😂so let me know what you guys thinks because I've never heard of anyone doing this before or for it to be a regular or required thing during intercourse lol