Would you stay with a new partner you were in love with if you find out they cheated on you a week ago?

So let’s say you fall in someone with someone you been dating for 2 n half months all of you’re friends&family love them and you spent almost every night with them since the day you met. You go on a 4 day vacation which gos super will then the day you get back from vacation you get messages with xxx videos, photos and marriage license saying that you’re partner been cheating on you every morning when they wasn’t with you for the whole relationship would you belive it? would you forgive said partner if they admit to it or think the ex partner is just lying and faked all the dated videos , photos, plus all the info the ex knows about where you went on vacation at and the marriage license
Updates
+1 y
Sane
Would you stay with a new partner you were in love with if you find out they cheated on you a week ago?
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