Started the job a year and a half ago. It’s a team of 4, plus the manager. Two of my coworkers did the same job, whereas me and the other did something slightly different. The other two people, plus the manager would always be working in the evening. We only get paid until 6pm (it’s flexitime though so if you start earlier you can finish earlier but can’t start later than 10) but my coworker would be logged on at home at like 8pm. I never did that in my previous role, and it was never expected of me anyway because my job was slightly different to theirs.
One of these people left and I have taken on their role. There is a lot to do and there are time constraints and deadlines. My coworker who I am now working with never ever finishes when she should. She is off on Thursdays and even logs on then. My manager at first told her to stop doing this but she never listened so he doesn’t bother telling her anymore because she just does it anyway. However, she is now expecting me to do it, because the person who had this job before me also stayed later and they would work together. Now I log off and she does overtime on her own, but it isn’t paid. She keeps asking me if I can log back on later that evening. For a few days this week I have worked 30 minutes over to finish things off, which is fine. But I don’t really want to regularly be working at 8/9pm. I asked my manager whether this is expected of me, and he said absolutely not and mentioned in a meeting that no one should be working past their 7.5 hours. But now she’s making digs about team players and about how she is doing more work than “other people” meaning me!
Please could I have some suggestions on how to handle this?