This prob not what ur thinking of but has a very similar concept: https://www.mangago.zone/read-manga/beyond_memories/
Spoilers~
Seme was an asshole to uke in their first time stream but then seme travels back in time and is extremely nice and protective of uke to make up for all the shit the uke went thru the first time
Rebirth I think has a similar concept of seme regret + pursuing? https://www.mangago.zone/read-manga/rebirth_1/
This is one I recently read. It had the guide and esper characteristics.
https://www.mangago.zone/read-manga/old_wolf_and_young_fox/
Huh, does anyone know similar to this story? I think it's the almost the same but the seme admitted that when he was near death, he realised he won't have a chance again with the uke. That's why, he became nicer and tried to pursue him. That story, it kinda reminded me of this. Also, I have a bad memory so this might not be too accurate.