What says "I love you"?

Babyy • Going through this daily pregnancy journey...

Background : I've just recently got into this great relationship with a wonderful man. We have been seeing each other every day. It kills us when we miss a day without each other. We got it bad. (Song reference ) Anyway, we understand that sometimes you just can't control everyday life and have to go without visiting for a day or 2 sometimes. I have been so busy here lately and I have not been able to see him in 4 days and all the plans he created fell through because of me. He isn't mad or upset in the least bit. He is completely understanding, he just misses me. I want to make it up to him . I want to continue to give him the great love he deserves. (I know Most will say I'm going over board, but this is our relationship. I just need advice ) So my question is :

What could I give to him as a gift or surprise him with to say "I love you and I have been thinking of you"?

Any advice or tips would be great! Oh....by the way.... I'm not exactly flowing with money.....LOL!!!