Ride or die couples

So I'm rewatching Doctor John and one of the things I love about it is how protective they are of one another? I'm not necessarily looking for another medical drama but similar relationship dynamics? 

((Other examples include The Ghost Detective, which was a lacklustre drama who's plot I've forgotten but the relationship between the leads stuck with me. And currently airing The Law Cafe))

Oh! In the drama Happiness, that is probably its biggest strength. I absolutely love, love, love the main leads' dynamic. They are such a power couple, and even though the romance is more muted than other dramas, the fact that they genuinely care for/are protective of each other is pulpable. Maybe not my favourite drama ever, but worth watching for this.

 AH :

I'm afraid I haven't seen any of the dramas you referenced, but these dramas have ride-or-die couples that are very protective of one another:

• Bromance
• Crash Landing on You
• Love Between Fairy and Devil
• Who Rules the World
• I Hear Your Voice
• Come and Hug Me
• Hi! School - Love On

I've seen four of these, but I'll check out the others. Thanks. 

• + 1 Happiness
• + 1 Crash Landing on You
• Forever and Ever
• Intense Love
• Love O2O
• While You Were Sleeping
• You are My Glory