Not an ex but my nightmare sd (then almost 18)
She came to live with us after her mother threw her out
She could throw some right sulks but we just ignored it and carried on as normal which seemed to wind her up further
one day we where in superdrug
She suddenly started saying she wanted to go home-and we had to give her a lift,right there and then
We still had some shopping to do,so said she could walk back if she wanted or wait for 15/20 minutes while her dad went into the last shop and we where heading back anyway
The face!
she said she didn't have her keys and wanted to walk
Fair enough,so I reached into my handbag for my house keys
Cue major meltdown-she laid on the floor screaming (picture a toddler having a tantrum)
We calmly stepped over her,paid and walked out of the shop
She finally followed us and the sulking went on for well over a fortnight-we where 'embarrassing' apparently (me for reaching into my bag,for using my superdrug card when I paid and for using my debit card-she thought i should have used cash)
Another story is her father bought her a 5 pack of posh,very expensive bagels (we don't eat bagels) as she wanted them but only these ones would do
She ate half of one and binned the rest as they where 'dirty'
She sulked for weeks when I said that she could have either eaten them or I could have frozen them for later
I was wrong for saying anything and she sulked again a few weeks later when I refused to buy her anymore (ditto the broccoli,bread,cookies,butter,sausages,muffins and yoghurt-she pulled the same stunt)
My son came to stay and to give us the news he'd popped the question to his (now ex) girlfriend,they where getting married-we where really pleased (they broke up a year later which was a shame)
Cue major sulking as she wasn't getting enough attention and we hadn't 'thought about how it would affect me' (it wouldn't have affected her in anyway)
Every single time,she ran back to her mother with tall tales (that made her the good guy and us the evil ones-the details would have been changed so far,the story wasnt even true) about how we where mistreating/embarrassing her and we'd cop abuse from her too
She finally moved back out-many many stories of her bratty behaviour