This thread is so long that it can beat "Zhen Qing". Hahahaha...
Your boss is harassing you. He's a nutcase, treat him like a nutcase.
Remember how when you get pimple on the nose, die die also must squeeze. After squeezing you'll get a BIG SWOLLEN NOSE. That's how your dumb boss is - a pimple in the nose which must be left alone, provoke him and see the consequences - like a hole in the nose.
Not only you must ignore people like this, you need to detach yourself completely from it. See his SMS, delete immediately. Stop taking car rides from him - you don't want anything to do with him yet you still take rides from him. That's something i completely don't understand.
Whenever he sweet talks you - ask him to prove his love by quitting his job. If he doesn't then there's nothing to talk about.

If he quits his job - then he won't pester you at work anymore. Just remember to change address, change handphone number, change face, change everything he knows about you.
Don't get angry, get EVEN!