How should I respond when my friend with benefits told me that he is married after he left me since 2 months ago?

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my instinct kept telling me that he is married. but my body can't accept the fact that he left me out of sudden.. which is made me became insomnia, has no appetite to eat, being stressful with fake friends as well however I just left toxic friendship, dealt with mom being rude to me.
and today I received a message from him and he responded me that he's married. and I'm not surprised at all , but I laughed because my instinct was right. and I feel numb to everything.
How should I respond when my friend with benefits told me that he is married after he left me since 2 months ago?
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