"The Big Bang Theory" has one of the weirdest relationships in the planet. Sheldon and Amy have been out of the relationship for many seasons until they eventually fell in love last season. After they moved in together in Penny's apartment because Amy's abode is being fixed, they are taking small steps at a time to have a normal relationship. The couple had a breakup in 10 episodes and credits to Sheldon they were able to get back together.

"The Big Bang Theory" season 10 episode 16 will feature the odd couple in their first real fight after Amy learned that their friends are aware of their sexual relationship together. She was so upset and confronted Sheldon according to Gosh! TV.

The couple was dining with Bert (Brian Posehn) when he exclaimed why they were having sex only once a year. The stunned Amy wondered why he knew the private details of their lives and Bert pointed to Sheldon (Jim Parsons). Amy was more surprised when she learned that all their friends and even the cafeteria crew knew about it.

Looking back at their unusual relationship, the pair was like experiencing love for the first time as teenagers. Sheldon though experiencing new things has learned a lot and has been working hard to be the good partner. He was the innocent, clueless guy who is groping in the dark when it comes to relationships but he managed with flying colors.

Their relationship has evolved into a more mature ad adjusted partnership according to Cinema Blend.  Sheldon will eventually propose to Amy but unknown what season it will happen and this has been the most anticipated part. The episode 16 titled "The Allowance Evaporation" features Raj, the son of an opulent couple being cut-off from his parent's allowance to enable him to become mature. Watch "The Big Bang Theory" season 20 episode 16 this Thursday at 20:00 on CBS.