Well, yes, this occasionally happens - there's 700,000+ profile managers and perhaps as many as 3200 are active these last 12 months ... I've had it happen to me
If you'll click on Changes just under the cameo profile of a female the name and URL of the one who disconnected a spouse will be available and you can click on their name and politely explain to them they made an error -- that's assuming you have the birth record for their son with parental names on it ... Hanna etc ... even a baptism cert with parental names would help
Or you can ignore whomever did this, and re-attach Mr Coote, and do up the transcript for their son's birth record and post it not only on HIS profile but on Hanna and on Mr Coote (along with the citation) making a note this affirms they were united -- if you do come across a marriage record you can change the wording some
As I say you can simply attach Mr Coote again and as Melanie said, that's your option. "Restore" will not re-attach the spouse