How can I add the "Like" column
see here a list of supported tag fields:
perhaps you find one that your player shows as "like".
Or the other way round: "like" a track in your player, then open the same file in MP3tag and check the extended tags dialogue (Alt-T) to see if there is a field that shows the "like" data.
If all this fails, then it is fairly likely that your player uses this piece of information only in its internal database.