can anyone recommend me a bl where they break up and get back together?

These?

https://www.mangago.zone/read-manga/loss_time_ni_hanamuke_o/

https://www.mangago.zone/read-manga/aiharakunto_kashimakunha_rabukome_kamoshirenai/

https://www.mangago.zone/read-manga/driver_s_high/

You should def read bl. I love the nagi and reo arc where they break up and get back together. Literally my favorite arc

https://www.mangago.zone/read-manga/blue_lock_episode_nagi/

https://www.mangago.zone/read-manga/yi_s_heartbreak_diary/

https://www.mangago.zone/read-manga/puchitto_hajiketa/
https://www.mangago.zone/read-manga/soshite_mata_kiss_wo_shite/
https://www.mangago.zone/read-manga/escape_journey/
https://www.mangago.zone/read-manga/the_end_of_the_world_with_you_1/
https://www.mangago.zone/read-manga/sono_suki_honto/
https://www.mangago.zone/read-manga/percentage_of_love/
https://www.mangago.zone/read-manga/hatsukoi_no_atosaki/
https://www.mangago.zone/read-manga/mr_100_perfect/
https://www.mangago.zone/read-manga/a_pushover_s_romance/
https://www.mangago.zone/read-manga/love_jinx/
https://www.mangago.zone/read-manga/the_half_demon_dragon_knight_is_obsessed_with_the_markgraf/
https://www.mangago.zone/read-manga/last_love_of_youth/

Other ones not mentioned Enjoy!

https://www.mangago.zone/read-manga/dark_heaven/
https://www.mangago.zone/read-manga/driver_s_high/
https://www.mangago.zone/read-manga/inner_beauty/
https://www.mangago.zone/read-manga/mr_100_perfect/