Understand lyrics

Yuugure ni nobiru kage shiawase no katachi ga kawaru
aruki hajimeta daijoubu da yo

I probably cried on the way home, my head hanging down
i couldn't say anything
i'd always been by your side, but

We took a shortcut across the park
even i could figure it out

Our shadows stretched out in the sunset
the shape of happiness changed
you said we'd always be together

Sorrow is always lurking near love
you laughed and said you'd tease me

If there were really such a thing as superheroes
maybe i'd bother them, i thought

Our shadows stretched out in the sunset
the shape of happiness changed
'cause we can't always be together

I can't live my life blaming you for everything
'cause i just keep making
... The same mistakes ... The same mistakes

Our shadows stretched out in the sunset
the shape of happiness changed
i've started to walk; i'll be okay