Is it likely my friend will find out her boyfriend cheated with me?

I'm single by the way. We're all in our last year of HS. They've been dating for nearly 2 years now but he's been cheating with me for 4 months.

Last week was a close one. Luckily the front door was locked and by the time he answered, I was already hiding in the basement, inside a large storage chest. I want to stop but it's like we get drawn into this. Is it likely she'll find out?

Is it likely my friend will find out her boyfriend cheated with me?
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