The phrase "all my love forever" is a beautiful sentiment expressing lasting love and devotion. But there are many synonyms to this phrase that can convey the same deep emotions. Some examples include "eternal love," "endless affection," "unconditional devotion," "unceasing fondness," "everlasting adoration," and "infinite passion." These phrases capture the everlasting nature of true love and can be used to express your feelings to your significant other, family, or even close friends. No matter what words you choose to use, showing love and letting those closest to you know they are cherished is always valuable and meaningful.