Lyric discussion by proposals 

Cover art for I Love Creedence lyrics by Casiotone for the Painfully Alone

No, it doesn't imply romantic feelings. It actually implies lack of romantic feelings, to me. All that lyric is saying is that it had as much of an emotional impact on her as a divorce would. Saying, "I swear, ___" sounds like trying to convince someone of something that might be a little unbelievable, like a friend leaving you being the equivilant of a husband leaving you.

It does matter, because the song is about losing a friend, and I think it kind of cheapens it to imply that it's just another love lost story.

Anyway, the only reason I made the first comment on here is because I actually saw Casiotone live and before he played this he explained what the song was about, so I know this for a fact.