The art is so pretty but wtf was that ending?

What is the ending, please spoil me ?

in the last chapter Mc finds out that ML has kept pictures of him since high school (some he got from other people and some he took himself) which unsettled him a little and he did tell him to stop taking them without permission but in the end he was like it's fine i love u blah blah

Thank you, and indeed that's a vague ending, I hope it has many side stories, enough to explain important details , like the problem with his father and how the parents of the other guy took his relationship.