I get it so he knew the uke was lying when he pretend to forget everything about them as friends and etc so he cooked up a lie about them dating each other for 4years so he can actually do ecchi stuff with the uke and actually acting as if he loves him but he is Indeed in love with the uke becuz he always annoys him and make fun of him that's how u know when a person in love with someone they always bullies their crush otherwise he wouldn't be so worried about him when he fell down the stairs....so he pretend to be lovers so the uke fall in love with the seme (≧∀≦)
I get it so he knew the uke was lying when he pretend to forget everything about them as friends and etc so he cooked up a lie about them dating each other for 4years so he can actually do ecchi stuff with the uke and actually acting as if he loves him but he is Indeed in love with the uke becuz he always annoys him and make fun of him that's how u know when a person in love with someone they always bullies their crush otherwise he wouldn't be so worried about him when he fell down the stairs....so he pretend to be lovers so the uke fall in love with the seme (≧∀≦)