That sounds very lovely

Say are we there yet over and over?

Good. Now you can tell her how controlling she is and that she can **** off.

Well, you've already been dumped. Nothing to lose now. Might as well make the most of it. I suggest gently blowing in her ear every time she looks away, then immediately looking in the opposite direction so she doesn't catch you. Then deny everything when she accuses you. Slowly escalate the obnoxiousness of your antics over the next seven hours. Have fun!

You should go all Vince Weiguang Li on her ass, or her head, as the case may be ;) Google it.

On the bus, be sure to look at your phone or iPod or something smiling, and keep saying - "OH MAH GOD, I LUV MY BF *insert the current or a made up name for your BF here"*"

make her life hell

Why do you have to sit next to her? Just ignore her

Mom has always been jealous of her son. She wanted you for herself. Now that you're her captive audience, she will profess her undying love for you.

Switch seats.