Drama where the wife/gf(the FL) is 100% on the ML's side all the way through

• The Princess's Man

also maybe My Lethal Man (despite a rough start and a moment when she very briefly runs away she's otherwise 100% on his side and even is the only one ultimately able to save him)

 AH :

• Bromance
• Hidden Love
• You Are My Glory
• W
• Come and Hug Me
• Go Ahead
• Go Go Squid!
• Itaewon Class

Agree with all of these plus 

• Goblin
• Love me Love my voice
• Road home