How To Write A Valentine's Day Letter . Set the tone by saying why you’re writing the letter. This could be as simple as “just thinking of you,” to weightier declarations like “i’m so thankful you’re in my life and want to make sure you know just how amazing you are and how much you mean to me.”. Valentines day poems, valentines day pictures, valentine messages from valentinesdotcom.blogspot.com While i wait for my better half to come in my life, i wish you guys a very happy valentine’s day. It could be as simple as you are a part of me now and i just had to express my feelings for you. or, this valentine's day, i want you to know how unique you are.. Valentine's day is a good day for me to stop and realize how wonderful you make me feel.