Today is 5.20

Wish I knew of this day before! (Valentine's Day is my favorite holiday!) Will have to look it up! :)

The sub-phrase you used - I love you - sort of seems awkward here. I might have said just love or something else.

The word confessions is probably not the best choice here. A confession is when someone tells of a secret of wrong-doing, and wishes to come clean to make their conscience whole again, and is willing to take punishment for their bad deeds. A confession is a telling of one's mistakes.

You may have been thinking of the verb to confess which is more generic - to confess incorporates confessions as described, but also any secret that is brought out into the light. So instead of make confessions you may have wanted: ...will choose this day to confess their love to... or ...will choose this day to propose to... if you meant a marriage proposal.

This - happy love's day - is a "sentence within a sentence" - as such, it should be capitalized - title capitalization is best, given that the name of the holiday is used here: Happy Love's Day! Oh, and generally an exclamation point is valid here, not a period.

The word wishes as you used it here is very generic ("I wish I had a million dollars!¨) - a much better word is the compound word well-wishes which is used explicitly to express the idea of wishing for long life and happiness and finding love and all that (although it is commonly used in giving someone encouragement to get better from illness or injury).

Hope that wasn't too confusing!

Keep up the good work!

(Now to go look up this holiday!)

Today is 5.20