Anyway, I was thinking about Miroku again after Ep 113 when he yet again makes a pass at Sango. Reading through some of the posts on the forum, most of you think he's just being a loveable insensitive jerk, but I take a different idea. Indulge me with my dime-store pop psych.
Most people seem to think he's just your typical young adult lech, but how about looking at it this way. He has a terminal condition: the air void in his hand. If you remember, he doesn't expect to live much longer. So you might think he's just indulging in hedonism until the end, but how about this:
He's deathly afraid of getting close to someone and hurting them when he finally "sucks" himself (insert your self-felatio jokes here). By acting the ass, he can still show/get affection, but never let anyone get close enough to get hurt.
So why do it with Sango, when even he has to notice that she likes him if he isn't being a perv? Is he dense? Possibly. His tanuki friend seem to have a better clue at hitting it off with the ladies. But Sango has been through so much pain (losing her village, family and Kohaku) that the thought of her falling in love and then watching him implode is too much for him to bear. She might be willing to get close to Miroku, but maybe because Miroku cares for her too much, he won't let her be hurt again so he deliberately goes out of his way to antagonize her so she won't come any closer.
That's why when that prince comes courting for Sango, he doesn't put up a fight. It's a relief: the woman he could go "straight" for will finally have a chance for happiness than he could never hope to provide for her.
So the next time you see Miroku and Sango flirting around like that, you can look at it with some compassion and hope that those two hook up soon.