I have the same Facebook account on two phones can I delete one account without having the phone?

[Lisaday]

I have one ace book account on two phones and I need to delete Facebook messages off the one my spouse has , how can I do this without having the phones?

 

[n-evo]

Under Settings > Security and Login you have a list of all the devices Facebook is active on. You can use it to log off. Just click the three dots on the right side.