Haha, I am not sure about the ones that akimore rescinded (sorry, I never saw those), but based on OP’s examples:
-in You Are My Glory, Yu Tu and Qiao Jing Jing are married in the 30th episode (just opened my Tencent Video app to check, haha!) out of 32 episodes, so there are 2 episodes of their post-wedding life
-in My Little Happiness (also from Tencent), while Wen Shao Qing and Cong Rong are married in the last episode, there is still roughly ~15min of video post-wedding (a flash forward to “some years later”); hence, showing their post-wedding life there
of course, up to OP to decide if my interpretation is right or not :)