Caught my girlfriend in bed with someone else... but then she gave me the best sex I ever had to make up for it? Is there a future for us?

it was real painful seeing my girl , less than a year together, riding some bloke from her job,
i mean the scene is seared into my brain,
she begged for forgiveness and even though i told her i couldn't trust her,
i couldnt resist her basically proceeded to do everything I like, in the way i like it while saying the things I love to hear. i mean, she put on a spot-on performance I will never forget and may even use as an emergency get hard memory when times get difficult.

can i , should i, let her unfaithful act be brushed under the rug?
Caught my girlfriend in bed with someone else... but then she gave me the best sex I ever had to make up for it? Is there a future for us?
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