1: Thanks for being in my life. 
2: You’re not a burden.
3: I’m grateful for you. 
4: I need you.
5: I can’t imagine my life without you.
6: I like you the way that you are.
7: You’re perfect in my eyes.
8: You’re the first thing I think of when I wake up.
9: I enjoy your company.
10: You matter.
11: I appreciate you and all the things you do.