Hey!Lemme introduce!Im Lexi and do i have advice fa you!
BOYFRIENDS........
Come ON.....calling him nicknames still??!!Move on....Honeybear Poopykins Baby Boo....come on what happened to good ol' dear?!
Don't get too romantic with him in front of public...he might be embarassed if he's the shy and quiet type. 
FLIRTING.........
Forget your inner beauty...put on some makeup, school rules or not!
When you're talking to him,just sound casual not too excited....he might think you're a bit crazy..

When you go on a date with him,don't just keep on staring at him if he's looking somewhere else..i know some girls who just keep staring and staring and he freaks out!
Here's a video that might help you !
 Bye!!
If you have any questions you can contact me at lululilyana223@gmail.com