on a pedestal
In a position of being revered, honored, or thought of as perfect, especially due to blind devotion. I know it's easy to be smitten with a romantic partner, but I don't think it's healthy for one person in a relationship to put the other up on a pedestal like that. I think you put a lot of these old movies up on a pedestal out of nostalgia more than anything else.
*on a pedestal
Fig. elevated to a position of honor or reverence. (Alludes to honoring someone on display on a pedestal like a statue. *Typically: place someone ~; put someone ~.) He puts his wife on a pedestal. She can do no wrong in his opinion. I was just doing my job. There is no point in placing me on a pedestal!