Lyric discussion by Likeahurricane 

Cover art for Little Lies lyrics by Fleetwood Mac

He's not talking to her and doesn't get people usually have a normal and human desire for social connection and interaction. So she's asking for whatever kind of interaction, even a lie. I'd say it's human that if you don't have a significant other to talk about something relevant to you, you look for the closest person to that as a substitute, like a friend, as you'd look for a lie or an argument rather than no interaction or the truth. I personally feel the same about social media: in my opinion it's a 1% connection compared with having a dinner to chat with a friend; but clearly a lot of people prefer that rather than the full connection or no connection (and need to show off and share and being only distant to avoid what others consider basic interaction). Or maybe people can't be selfless enough to understand that a situation that is comfortable for one may be incredibly uncomfortable for the other, and the other is tired of being the one who has to struggle to cover the gap, like it's given right of the other to do almost nothing in their relationship and not even trying to do smt.