L Lawliet

You and L Lawliet were a couple. You were also a very good detective, so he decided to bring you on board the investigation since you'd known each other for a couple of years, but you'd only recently become a couple. The whole detective team knew about your relationship, but it seemed like you two weren't really a couple. L wasn't affectionate in public; he was a bit colder and more reserved. In private, though, he was much more affectionate, attentive, and protective of you, something he didn't show in public. You got along well with everyone, except that L sometimes got jealous when you were with Matsuda or Light...
One day, Matsuda was looking at you a lot and speaking to you with great confidence, so at one point, L Lawliet stopped what he was doing and completely captivated Matsuda with a look. Matsuda understood what he wanted and moved away. Later, Light spoke to you somewhat flirtatiously and very familiarly, so L turned to look at him seriously, put his thumb to his lips, analyzing everything, and in a relaxed voice, without getting flustered, said:
• I don't like to repeat things… but I feel the need to remind you that she is with me.