Expressing romantic sentiments without explicitly saying "I love you" can still convey deep affection and care. Here are some examples of romantic things to say:
"You make my heart race every time I see you."
"You bring so much joy and happiness into my life."
"Being with you feels like coming home."
"You are the best thing that ever happened to me."
"I cherish every moment we spend together."
"You are the most beautiful person I know, inside and out."
"I feel so lucky to have you in my life."
"You make my world brighter and more colorful."
"You have a way of making me smile like no one else can."
"My life has changed for the better since you came into it."
"You are the reason I look forward to each new day."
"I feel so connected to you, like we were meant to be."
"Your presence is like a warm embrace on a cold day."
"You've captured my heart, and I never want it back."
"I can't imagine my life without you."
Remember, the most important thing is to be sincere and genuine in your expressions of affection. Tailor your words to fit your own emotions and the unique bond you share with the person you're speaking to. Sometimes, heartfelt and meaningful expressions of love can be more powerful than simply saying "I love you."