Edit: I’m 30, my partner is 29

This is probably a minor issue in comparison to many posts here but this is where I’m at.. My partner of 6 years (who is mother to one of my kids and treats the other like one of her own) went on her Christmas night out with work on Saturday. Sunday rolls round, everything is normal and we attend a Christmas show related to a club both the kids go to. Turns out to be a really good day until later that night.. It’s about 9pm, kids are in bed and we’ve ordered a takeaway because it’s been a busy day when my partners phone rings. She answered the call close enough that I could make out what was being said by the person on the other end of the phone. It’s a man’s voice, he says ‘hey chick how are you? it’s <NAME>, we met in the town’. Before he could say anything else she sort of laughed, hung up the phone then said ‘definitely got the wrong number there’ My immediate reaction was to ask what it was about and why she wasn’t curious to find out where he may have mistakenly got her number or who he thinks she is. She just brushed it off and went to take the food delivery in which had arrived by this point. I didn’t feel comfortable trying to pursue the conversation and left it at that.

There are two particular considerations that might play a part in this in that the city she went to for her night out has a completely different accent from the city the guy’s accent was from. And, the city she was in is not commonly known as ‘the town’ whereas the city his accent is from is regularly referred to as ‘the town’. The cities are only about 40 miles apart though. Another thing I find a bit odd is that if someone called me as a result of having the wrong number, I would have been more inquisitive as to where or how they thought they knew me purely for my own entertainment. She just shut the call down like it was a spam caller.

Now, there have been no previous trust issues in the relationship and I appreciate that people phone wrong numbers. However, since the kids came along it’s a rare occasion for either of us to be out and I find it odd that this call followed the evening immediately after a night out. I’m also fairly certain if the shoe was on the other foot she’d probably not have let me brush it off and walk out the room (not from experience but her ex cheated on her in the past and as a result I know she feels strongly about cheaters) I have never snooped through my partners phone but I can’t stop thinking about going in just to get that number from her call logs and calling the guy myself to understand the context a bit more as it just feels odd.

My gut says there are two options, get the number and call the guy. Don’t be aggressive, explain the situation, not looking for trouble and see what he says. Or make her do it when she gets in from work. I have no interest in anything else on her phone beyond the number that called around 9pm on that day. My head says two things, just leave it as I don’t want to believe there is any malice in it. Or possibly bring it up again but then that can create its own issues if my partner thinks I doubt her.

All of the above could damage the relationship over what could be nothing.

Anyway, it’s 5am and I am curious to know what your next move would be? Is there a better solution that I have overlooked?