I work in a small team. A couple, June and Fred, both work in it too. I am June's supervisor. My manager is Freds supervisor (Fred and June are equal roles, him FT her PT). June has twin boys. They've been together about 18m. Each still live with their respective families.
Fred is a nice guy I've known him a long time at work. However he is a liar and from what I've seen, can be quite jealous and possessive.
June and Freds relationship seems good, however his possessive nature and jealousy sometimes causes issues.
It appears now that he has hurt her. This happened on work property, which is why I'm now wondering if I should do something, however it was before either of them started work. Hurt as in she was left with blood on her arm.
She doesn't know I know. I would of course be willing and able to offer emotional support or any sort of advice I can. However I am also wary about the fact that if Fred knows I am aware or that others are aware he may well take out his anger about this on June.
What do I do?