One thing to remember is that orgasms tire a woman out and it may be harder for her to feel sexual the rest of the night so she may actively be avoiding orgasms if it's early in the evening. Some do it because they really need money. Some do it because they like the work. Some do it for a while as an adventure, to see what it's like. Or a combination of all of the above.
Escorts are women like all other women.
Some of the finest women I know are escorts. It's a privilege to get to know them. I just got divorced. Yes, it probably will. I think a whore and a Joint will do you a lot more good that a psychologist and anti-depressants.