Is this an inappropriate way to grieve over an ex if in a relationship?

Asked by chelle21689 (7907) November 3rd, 2014 from iPhone

Two people died Saturday night from a car crash related to alcohol. I knew one of them, really nice guy… My Facebook is flooded with kind things and photos said about both people.
The other girl is my bf’s cousin’s bf’s ex. He shares a daughter with the deceased woman.

Anyways, on his Facebook you can tell he’s taking it very hard. He constantly posts up pics of then together in a loving way such as kissing each other on the cheek, hugging, etc. with long notes about how much he still loved her, how beautiful she was, etc. it sounded like maybe he is still in love with her? Even though he expressed previously how much he wanted to marry my bf’s cousin one day.

I was wondering if you guys think it’s ok to post mushy romantic sounding things if you’re in a relationship? He’s been with my bf’s cousin for over a year.

I’m not saying he’s wrong for grieving but I feel like I would be a bit more considerate of the type of photos displayed to my partner.