To be proud of oneselves.

The country's girls are very ...........(a word related to proud of themselves) and they won't easily be friendly with boys.
I asked him for just 2$ in an emergency, he was too .............. and didn't give me.
Please don't bow to him. It will instigate him to be ................. .

Please correct the sentences and fill up with an appropriate word. In all the above sentences, I'm looking up for the same word related to "to be proud of oneselves or something". Actually simply I don't look up for a "proud" word, otherwise I would have used the word "proud" itself. It should be something else which should indicate he is proud of himself or something. Thanks in advance for the great help.