Britney Spears and Sam Asghari split after a heated argument.

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Sam confronted Britney over cheating rumors.

Sam moved out of their house.

Sources suggest divorce is likely.

Britney and Sam had physical and shouting fights.

Couple's union faced "deep trouble" for months.

Sam Asghari is now living separately.

End of marriage might involve a settlement check from Britney to Sam.

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