INDECISION !!!
when you dont know if whether give your love to someone and go ahead and built that relationship or just give up because you're scared or you dont want to jump into some relation but still you know that you feel something for that person... So you're trying to figure that out but, because of that indecision sometimes you have the thought of "oh no maybe i souldn't " so you kind of always go backwards on that relationship ...
Thats why he says that he really wants that person to give everything but he's scared of having his "hopes up again"...Im kind of in that situation and when i heard the lyrics i was totally shocked because im living this exacly situation of "indecision"... It sucks