poppin' ballon's feed

Wait if the ml is actually “oh my god, no one likes her. I”m gonna do everything for her sake” than why in the og story he ended up liking the real-real princess (sorry i’m bad with names)? Why is it looked like he doesn’t give a shit about philomel at the first timeline? I think he changed his behaviour after the changed in philomel, but it seems like i’m wrong…?