As I understand history (obviously written by those who killed JFK) Johnson was made an ambassador by JFK so that Johnson was NEVER in the States. Sweet deal if true. If you can't stand your VP, what better way to get rid of him than to send him on an endless working vacation around the world.
Johnson who knew why he was abroad so much hated JFK for the fact, giving conspiracy buffs yet another reason LBJ would want Kennedy whacked - as if he didn't already have 50 other reasons boiling in his head.
I know LBJ was a serious ladies man, literally meaning women were tripping over him - my mother never saw the appeal, of course "POWER" is enough reason for some people to fall head over heels for a politician, or the wealthy or anyone with presume great influence.