I think you mean the line "Why does love always feel like a battlefield"if this is the case then the line is from Battlefield by Jordin Sparks.
I Always Feel Like was created on 1997-01-21.
battle field 1942 or something like that
like sh@#
The same as you always feel.
where ever the hell they feel like.
paranoia
well..., tell her how u feel
Somebody's watching me
They like to be right or they feel a sense of insecurity.
when a boy likes u a lot and if u dont like him, u feel irritated and wonders why he behaves like that. but if u like that boy too, it is different. u will always in a dream world thinking about him and always longs to talk to him and to be with him always.
Outstandingly happy and it felt like i had power again and it was restored