I * think* he abandoned him for 2 years.. I would have to relook. I feel like they met 10 years ago ( or something like that) were together, had 2 children.. and then at some point it became more dangerous than the emperor could control and he abandoned him alone in his palace. Yea, I think that sucks to, and hard to like or make excuses for that, but I feel like it was 2 years.
I relooked at it quickly. It shows when the emperor promises to always love him. Then it says that was 10 years ago. But the empress says to his maid he hasn't been 'with' anyone for 2 years. So I felt they had a happy marriage for 8 years and the last 2 the emperor sequestered him on purpose. Just my opinion tho :)
One word...trash, like literally but it was funny