treat them like they are your friend so anything can't go wrong.
I mean just because they are your ex does not mean you are not
friends! hope i helped.
How should you treat your ex-girlfriend when you went out for a day but you still have feeing for her?
Poorly.
Its your ex's birthday you still like her you've given her a card should you do more?
I do not believe that you need to do more. Their your ex, so you
can now treat them like you would treat anyone else that you would
give a card to on there birthday.
Should I talk to my ex-boyfriend's best friend if he made the break up worse by telling my ex to keep liking the girl he does and apparently likes me?
Yeah you should, your ex's friend could see that he could treat
you better than your ex was so worth a go.