Husband in love with his wife

 mahiba:

I'm looking for dramas with a husband who's in love with his wife but for some reason he chooses not to show it

 mahiba:

maybe he has simply forgotten about how much he loves her

 mahiba:

Any country, any year

 mahiba:

I'd like for them to end together

 mahiba:

dramas with longer episodes (20+ minutes)

The marriage starts out as an arranged marriage, a contract marriage, a marriage of convenience or something similar, but the ML develops feelings for the FL (his wife) that he initially hides from her or doesn't admit to himself:

• My Demon - The leads are together in the end. The ML initially doesn't know that the FL is the reincarnation of the woman he loved before he became a demon, as he initially does not remember his life as a human. 
• Because This Is My First Life - The leads are together in the end.
• Love in Contract - The leads are together in the end.
• Alchemy of Souls Season 2: Light and Shadow - The marriage occurs in part 2 but you'll need to watch Part 1 first. The ML doesn't know that the wife he's falling for in Part 2 is the woman he fell in love with in Part 1, as he thought she died plus she lost her memories and has a different body. 
• Marriage Contract - The leads are together at the end of the drama, but it is strongly implied that the FL will soon die from the life-threatening illness that led her to agree to the marriage in the first place and the ML will look after her daughter after she dies.
• Till the End of the Moon - At the end of the drama we see the FL speaking to her daughter (also the ML's daughter) and, although the ML died, it is strongly implied that the FL will soon be able to use fragments of his soul to resurrect him. 

Not exactly what you described, but from what I've seen about When the Phone Rings, these dramas have vibes that are closer to it than the dramas I mentioned above:

• Flower of Evil
• Secret
• Mysterious Love
• Derailment