I see validity on both sides here. On one hand, you’re perfectly valid to feel that way, and on the other that’s something he put a lot of time and effort into. If he was already working on it (including planning it) when you two started talking then I don’t really see an issue with it, but if he only started it after you got together then I’d think he’s still hung up on her a bit. Overall I’d say you shouldn’t really worry about it tho, at least not unless he starts making new music ab her

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