Am I just overthinking?

I cannot stop worrying about when I first got with my boyfriend And he went away on a course and messaged a girl who worked at the hotel. My mind runs away with me saying “ what if they slept together” “what if they send naughty messages “ “what if I don’t know something” I’ve got no evidence other than them messaging. I’ve asked her and him and both so nothing like that happened. Am I overthinking this was like 7 years ago
Am I just overthinking?
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