If its taking a long time to execute, that is an indication of incorrect indexes being set.
So status_linkes.status_id and statuses.id must both be the same datatype and have the same definition, and then make sure both are indexed for faster lookups. You'll never get the same performance as just a single table query, but you shouldn't see a substantial increase either. Also make sure that the nick field on statuses is indexed, but given the 'nick' name for it, that would indicate to me that it's already likely indexed as a unique (but no guarantee since the table name itself doesn't tell me that it has to be unique).
As for the output, that is what you'll get. The language is responsible for formatting it in another logical way. MySQL has a group_concat function that lets you join multiple child records into a single field, but I personally think that's among one of the sillier functions available.