Front: I'm so HAPPY you chose me to work with you. / We're so HAPPY you chose us to work with you.
Inside: Our time together has been so rewarding for me. / Our time together has been so rewarding for us.
Front: I'm so HAPPY you chose me to work with you. / We're so HAPPY you chose us to work with you.
Inside: Our time together has been so rewarding for me. / Our time together has been so rewarding for us.