[languagehacker]

I'm trying to understand a part of the song "PLEDGE" by the GazettE. This is the part in question.

寂しさに包まれた日々は互いを濡らし
理解を求め合い 繰り返して また深く想える

永遠を感じたのは嘘じゃない
確かに君の隣で

That last line makes me wonder who or what is next to the subject? A lot of translations that I've seen for this song just assume that it is the singer. However, when I look at the first line, it makes me wonder if it's actually loneliness that is beside the subject.