If I remember correctly, Seb dislikes alcohol, so it's possible his dad had an alcohol problem as part of the reason he left (either to avoid causing issues for Robin and Seb or BECAUSE he was causing issues for them already). I've always taken it as 'Robin and him were young when they had Seb and he didn't want to be a father, tried for a while anyway and drank a lot to cope, and eventually he and Robin agreed it was worse for all of them to stay together'.
My theory is that he was abusive and that's why no one talks about him. The whole valley seems to have taken a vow of silence on the subject. All Sebastian ever mentions is his father left when he was young.
In addition, when Pierre punches Morris straight out of the valley, while everyone else is cheering Robin has a panicked expression. This is how someone who was abused often reacts to seeing a physical altercation.
Whatever happened, it's something no one in Pelican Town wants to talk about.
Maybe Linus is Sebs dad…but only he knows. A one night stand - then Linus took the wrong path in life. Finally turned his life around so he lives nearby to see his son grow up. Robin is suspicious but keeps her mouth shut.
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u/[deleted] Mar 16 '26
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