5/10 oop, mid pair, tough opponent. allllll in?

[Some9]

[ QUOTE ]
For those of you who hate the flop play, what's your line and why? What if you know you're likely to get raised?

Here's how I looked at my options during the hand:

...

[/ QUOTE ]

I feel the same as OP here, lost.

Could someone please explain why betting is so much better when you know villain will bet if checked to 80% and raise if bet to like 25%?