Nice piece of free verse style about fabric hearts. My first point about the first line 'it seems so long ago' you have to add 'that' after 'seems' because you are talking now about something happened in the past. Line two 'that you were by my side' should be 'when you were by my side'. Line 6 'were much too tough' should be 'were much tough' since 'much' and 'too' give the same effect and meaning.
Great and meaningful piece