"Cho dù những ngày đã qua có đôi phần đắng cay và hối tiếc thì anh ấy vẫn luôn là một người quan trọng nhất trong cuộc đời của tôi.
Khi viết Someone Like You (Một ai đó giống anh), tôi cảm thấy có chút hụt hẫng và cô đơn… Tôi tưởng tượng đến khi mình khoảng 40 tuổi, tìm lại người yêu cũ một lần nữa chỉ để biết rằng anh ấy đã an cư với một người vợ đẹp cùng những đứa con ngoan và hoàn toàn hạnh phúc. Còn tôi, vẫn một mình…”
"Someone Like You" was written and produced by Adele and American songwriter and producer Dan Wilson. It was one of the last written for 21.The track, which epitomizes the lyrical content of 21, summarizes the now defunct relationship that the record is all about. Adele has openly discussed the genesis of it saying, "Well, I wrote that song because I was exhausted from being such a bitch, with ‘Rolling in the Deep’ or ‘Rumour Has It’ … I was really emotionally drained from the way I was portraying him, because even though I’m very bitter and regret some parts of it, he’s still the most important person that’s ever been in my life, and ‘Someone Like You,’ I had to write it to feel OK with myself and OK with the two years I spent with him. And when I did it, I felt so freed."
Adele revealed that she was struggling emotionally when she composed it: “When I was writing it I was feeling pretty miserable and pretty lonely, which I guess kind of contradicts ‘Rolling in the Deep’. Whereas that was about me saying, ‘I’m going to be fine without you’, this is me on my knees really.” She discussed further the inspiration of the song: “I can imagine being about 40 and looking for him again, only to turn up and find that he’s settled with a beautiful wife and beautiful kids and he’s completely happy… and I’m still on my own. The song’s about that and I’m scared at the thought of that.”