I agree with the hand reading, but I think sometimes we can OVERREAD hands and think we know what villian is holding by going through every possibility and trying to take hands off based on actions. People don't always play by the book, and while putting villian on a hand range is great, it's not the only important thing out there.

As for your assumption, I can see that, but a lot of aggressive players tend to think your only betting or folding and would attempt to go back at this pot especially if you only feel strong enough about your hand to check the river.