Facebook screenshot is evidence in family court ?

Use of word "separated" in the status by itself is not proof of the act of cruelty. The fact is after both separated 2 years back and the divorce proceedings started between both now, nothing wrong if either of them show his/her status as separated in any social website.

Screen shot of status "separated" taken from facebook may be admitted as piece of evidence in the divorce proceedings by the Family Court but that will by itself does not show the act of cruelty on the part of husband by using it.

Taking without his notice can we object in any sections?

And just how is it cruelty?

it means without divorce if husband puts Seperated in FB post in profile&  they are leaving seperately more than 2 years