Alphamon_Ouryuken 
"[@RascalPascal":](/1319465#comment_5697057
)
There actually is an indication they all grew closer in the description, specifically this part:
[bq]
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> Flash and Twilight helped Sunset move on and the three bonded over studying magic, sharing stories about events and adventures they’d had in both worlds,
[/bq]
[bq="RascalPascal"] "
>
> [@darknessRising24":](/1319465#comment_5697034
)
> Also you’re probably thinking of NTR and not cucking because the latter does not usually involve cheating or dumping, in simplest terms it’s one of the people in a relationship getting more partners while the other person puts up with it.He's the captain of raising his wife's daughter and being out on duty while Twilight is fucking someone else.
[/bq]
>
Flash accepted Sunset into the family, so she wasn't exactly "shoved into hos life", nor did he just "put up with it".
I'm not trying to take it too seriously, I'm simply explaining the facts of what happened, because they way you phrase it makes it come off as if Flash in just the whipping boy who gets cheated on, which is not the case.
Also, you seem to have missed this part:
[bg]
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> Afterwards Sunset discovered she had a knack for combat magic, to the point where she decided that her talents were suited better in the Royal Guard. She joined and eventually became the second in-command, out-ranked by Flash himself due to experience.
[/bg]
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So basically he's not exactly being shoved to the side for someone else. Both of them are on-duty and help raise the kids when they can, not to mention Night Light Jr. is stated to have been born sometime after Sunshine was. So no, he isn't cucked as you put it.
Lord of the Empty Seat
There actually is an indication they all grew closer in the description, specifically this part:
[bq]
>
> Flash and Twilight helped Sunset move on and the three bonded over studying magic, sharing stories about events and adventures they’d had in both worlds,
[/bq]
[bq="RascalPascal"]
>
> [@darknessRising24
> Also you’re probably thinking of NTR and not cucking because the latter does not usually involve cheating or dumping, in simplest terms it’s one of the people in a relationship getting more partners while the other person puts up with it.He's the captain of raising his wife's daughter and being out on duty while Twilight is fucking someone else.
[/bq]
>
Flash accepted Sunset into the family, so she wasn't exactly "shoved into hos life", nor did he just "put up with it".
I'm not trying to take it too seriously, I'm simply explaining the facts of what happened, because they way you phrase it makes it come off as if Flash in just the whipping boy who gets cheated on, which is not the case.
Also, you seem to have missed this part:
[bg]
>
> Afterwards Sunset discovered she had a knack for combat magic, to the point where she decided that her talents were suited better in the Royal Guard. She joined and eventually became the second in-command, out-ranked by Flash himself due to experience.
[/bg]
>
So basically he's not exactly being shoved to the side for someone else. Both of them are on-duty and help raise the kids when they can, not to mention Night Light Jr. is stated to have been born sometime after Sunshine was. So no, he isn't cucked as you put it.