Hm, well I'm 19, so I still have a long way to go. Sending friends and/or boyfriends 7-page text messages after an argument detailing how much I care about them and how much I wish I could be what they needed, begging them not to leave. Result was usually the friend not talking to me for a week or two and the boyfriend at the time backing away slowly, lulz. Because it made me look like I was obsessed with them. Which I kind of was... I always had a LOT to say. 7 pages didn't even cover it.
Usually though, my frantic efforts are subtle and calculated enough to actually help me avoid abandonment. Except for when the person is literally about to leave and I have nothing left, then I crack and send 14-page letters of doom and keep thinking I see them everywhere I go and can't stop thinking about them until my withdrawal from them is over. Yeah...
Oh, and one can't forget when I wouldn't eat for at least a few days, making a wish that an individual would love me at the time, thinking the wish would have extra power because I wasn't eating. I would also make sure to make that wish at a time like 11:11 or 3:33 like an ignorant little girl, haha. I am so hellbent on getting people's love that I'll wish for it whenever the time seems most magical. Then when it doesn't come true I go back to my scheming.
I'm so in need of the people I decide to love that I always have elaborate schemes to keep them around. They're usually never aware of them until the schemes just aren't enough to work and then I flip out because I need them there.