perhaps

付出真心，才會得到真心，卻也可能傷得徹底；以為保持距離，或許就能保護自己，卻也註定永遠孤寂。

sincerely contribute only can have back the sincere heart, but may also be completely injury; thought that maintain the distance between you and me, perhaps will be able to protect myself, but destined lonely forever.