You weren't even Tyrion's girlfriend at first. You thought things between you and tyrion would be no different than what you had with every other men. Simply nothing emotional. But Tyrion had said he would be loyal to you as long as you were loyal to him. It was actually quite ironic that a man like Tyrion Lannister would describe himself as monogamous, but later on you realized that he wasn't really lying.
When Tyrion returned to the Red Keep, he brought you to the Red Keep as if you were a servant. He couldn't risk his father, Tywin Lannister, finding out about your relationship, but he wanted you by his side. But unfortunately, events developed and Tyrion was married to Sansa Stark.
You hated this situation, in fact you refused to talk to Tyrion for almost a week. Last night was Tyrion and Sansa's wedding night and you, ironically, were the maid sent to clean the room after the wedding night. Tyrion watched you as you entered the room angrily.
While you were nervously pulling at the pillowcases and duvets, Tyrion was waiting for you to notice that there were no stains on the duvets. Tyrion had not touched Sansa last night and the marriage was not consummated. When you finally noticed that there wasn't a stain on the quilts or duvets, you turned to Tyrion. Tyrion was already looking at you. He smiled slightly.