@jjytr,
Why won't she respond immediately to you, at the snap of your fingers, at your beck and call?
YOU HAD TO WAIT A WHOLE TEN MINUTES!!!!
Sheesh, if I were her, I'd block you. You're whiny, desperate, and annoying, and are attempting to be controlling.
Guess what? She's your EX.
You are no longer going out.
She has a life that does not always include you.
She may even be - shock, horror! - talking to other guys. She may be kissing them and a bunch of other stuff. Maybe that's what she was doing in those horrible ten minutes she didn't respond to you. Or maybe she was getting a soda, and her mother engaged her in conversation, and then she ended up loading the dishwasher.
Cripes, grow a pair and stop being so damned needy.
PS The whole "we can still be friends" trope seems to be lost on you. Go and do things that do not involve you contacting her. Have a life away from her, too. Talk to other girls. Kiss them if you like them (and if they let you).
Have a life, and this kinda of juvenile nonsense will never bother you again.