My boyfriend sent nudes to another woman can I work this out?

We’ve been together 2 years now and I did love him. I downloaded his snap chat history and about 5 months into our relationship he was sending dick pics to another girl. He always seemed so devoted and I’m crushed. I found out through downloading his data from SC. There’s been no interaction with anyone else since and we were having a rough spell at the time. He says it was a stupid mistake and he ended it as soon as it started.
My boyfriend sent nudes to another woman can I work this out?
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