Potty problems

my dog is a year old. he turns 2 in july. he is usually pretty good abt pottying outside, i take him out once every 2 hours. occasionally, if he doesnt go out, he'll have an accident inside, but thats very rare. around 3 weeks ago i was on my spring break, and while on this break me and my family were out often. we dont wanna pay for a sitter so he sat in his crate. every single day of that week, he went potty in it. it was fine, we were home, it wasnt his fault, i cleaned it up. the following week we were back to our normal routine, so i expected accidents to stop. he went to when my sister left to ger her kids from school, during meals, and occasionally if he was acting up/getting into things. otherwise he was out always. that week, everysingle time he was in his cage he went potty. even if it was for less than 30 mins. i began getting irritated. i take him out before putting him up, but he still goes potty. usually, im okay with him sleeping with me on my bed, but now he is always dirty in some way (not for lack of baths either) and i put him in his cage for one night. followed the same noght routine, dinner, wait 2 hours, potty, go to bed. but instead of just closing my room door and us going to sleep, i put him in his crate. woke up that morning to pee everywhere. mind you, when he sleeps with me, he has 0 accidents. i am currently writing this post after cleaning his cage for the 6th time this week, and giving him his 7th bath. i dont know what his deal is. it has been 3 weeks since my spring break where this started. im sick of having to scrub him and his blankets and his bed and his cage every single day. what do i do?