[This is a promise he's making, after all, not Frisk. Frisk breaking promises isn't a concern right now. This is on him, so its his total lack of integrity that's being called out here.]
but i'll do what i can.
promise.
[Look at him, making promises left and right these days. He wonders how long it'll be before he breaks all three of them.]
[Whatever. Self-loathing isn't particularly useful. This is about Chara.]
text
i'm the reigning champ for breaking promises, so
[This is a promise he's making, after all, not Frisk. Frisk breaking promises isn't a concern right now. This is on him, so its his total lack of integrity that's being called out here.]
but i'll do what i can.
promise.
[Look at him, making promises left and right these days. He wonders how long it'll be before he breaks all three of them.]
[Whatever. Self-loathing isn't particularly useful. This is about Chara.]