Was my ex cheating on me the whole time?

For the start; I know I shouldn't stalk my ex. But oh well, we've all been there.

So, my ex broke up with me because of (as he claims) long- distance, toxicity etc.

A week prior to the break- up, I posted him on my story. He reposted it, and some woman he claims he doesn't know, liked the story and reacted with "😍" . He never followed her back, claiming he has no idea who she is, so he blocked her.

And then I went to stalk her, and found him in her previous posts likes. Still, I said nothing.

So, after the break- up. Few days after the break- up, I stalked him and he indeed started following her. Like, 2 days later. Do I even need to say how I feel?

Like I was cheated on. Like he left her for me. Just a week after that incident, he breaks- up with me and follows her.

I know it doesn't matter at this point, but I just want to hear your genuine opinion on this matter. Do you think it could have been because of her?

Thanks.

Was my ex cheating on me the whole time?
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