I really need to get some outside opinions on this. I apologise in advance for being so mysterious and vague and all the 'partner 1/partner 2' stuff but I'm trying to keep it as unbiased as possible. A bit of background - together 20+ years, 2 secondary school aged children. We are married.
About 3 years ago there were some issues in the relationship, very close to separating but decided to stay and work on it. It came out that Partner 1 had developed feelings for someone they worked with. This was stuff like they'd saved photos of the person on their phone (taken from their social media), numerous google searches of them, theyd found out their address and searched that online a few times. Nothing physical ever happened but it had an effect on the relationship (at one point Partner 1 wanted to end the relationship) and Partner 2 was upset by it. This wasn't a regular every day job it was more of an occasional freelance thing, sometimes working from home, and sometimes involving travel and overnight stays.
Not long after came lockdown so of course there was no travel or anything like that for a long while. During this time Partner 1 said they would give up the freelance job so there would be no more travelling or having any contact with that person. However fastforward to now and Partner 1 feels they need to keep doing that job because it pays well, much better than a standard part time job (working is done around studying for a degree), they are only doing it for the money and they no longer have feelings for the person but continuing in this job will mean they continue to have contact with this person, there'll be travelling and overnight stays.
Partner 2 is unhappy with this and says despite the job paying well, it's not worth it for the amount of issues and unhappiness it will cause in the relationship. They have made their feelings clear but Partner 1 has said they are still going to continue to do the job regardless.
Sorry again for the vagueness. Who, if anyone, is being unreasonable here?