Hi
Answer
I am so happy you are in my life and I really enjoy the time I spend with you!
You can start by learning proper grammar:"What is something sweet to say to your boyfriend when he asks why do you like me?"
It depends on the situation
I am not a girl but you could say " sorry For being rude or something but the truth is I love you
Just say thanks or something little like that. we love that.
you could wish something like... i wish that he and i will be together or something. or wish that you and your boyfriend will be in a good relationship. but you honestly dont need someone's opinion to decide on something important like a wish on your birthday. just wish something good will happen to you and your boyfriend. or if you want you can wish something that your boy friend has wanted for a long time!
The sweetest thing could be I love you or You are so romantic, loving, (pretty much good compliments you could say). Something complimenting him about being with you or stuff like that.
you could say something like, "hey babe" or baby, or hey hottie. you know, something like that, or don't say anything. just look at him and give him a really cute smile.
You can't really because that is something everyone needs to take their own time to decide weather to say or not but you could hint that you want him to say it. Good Luck!
It is something that takes practice.
Tell him and tell him why
You can say...Hey how was your day..or ask him something like have you ever seen... or telling him what you think about something
Ok, but you have to do something for me.