my bf isn’t how he used to be

idk if i’m overreacting or if it’s something to bring up to him. but recently he’s been acting very distant. before he would make an effort to try and see me almost everyday and now we see each other once every other week if we are lucky. and today i texted him and asked if he wanted to go on a date date next weekend cause i don’t work and he seemed uninterested then when i asked if he was uninterested he said “ok” i don’t know what to do or how to bring it up to him. can anyone please help me :(

update: we broke up and it sucks and idk what happened...