Tia used the cliche' line “It’s not you, it’s me” as a way to get the hell away from this guy.

Now that Mikkey has someone in his life he is done with all the crazy things he used to do in his past.

The traditional admission of defeat in boxing, where a second who feels his boxer cannot or should not continue the bout throws a towel or sponge into the ring to end the fight by a technical knockout. Although it is most often the case the referee does not have to accept this signal from the corner and it is not unheard of for a referee to throw the towel out again and for the bout to continue. A sponge was generally thrown in the older days, now is more common to throw in a towel.

http://www.flickr.com/photos/robert_hughes/5086130859/

Tia has Mikkey focused and he is now making a lot of money and is successful now that he has a strong woman by his side.

http://www.flickr.com/photos/jodyklopp/3611109527/

You can have all your wildest dreams in real life.

Mikkey is telling Tia now that she has him she no longer needs to use sex toys or vibrators, “part with the batteries”.
http://www.flickr.com/photos/sextoysattitude/6946081767/

Reference to Mickey and Mallory Knox from the film Natural Born Killers. It is a 1994 American crime/black comedy film based on a true story about two victims of traumatic childhoods who became lovers and serial killers, and are irresponsibly glorified by the mass media. It stars Woody Harrelson and Juliette Lewis, along with Rodney Dangerfield, Robert Downey, Jr., Tom Sizemore, and Tommy Lee Jones.

http://www.flickr.com/photos/mujerlagarto/489416977/

In the music industry, a 360 deal or 360° deal is a business relationship between an artist and a music industry company. The company agrees to provide financial support for the artist, including direct advances as well as funds for marketing, promotion and touring. The artist agrees to give the company a percentage of all of their income, including sales of recorded music, live performances and any other income.
The business arrangement is an alternative to the traditional recording contract. During the first decade of the 21st century, revenues from recorded music fell dramatically and the profit margins traditionally associated with the record industry disappeared. The 360 deal reflects the fact that much of a musician’s income now comes from sources other than recorded music, such as live performance and merchandise.
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Mikkey is referencing when a label negotiate a deal with a recording artist, the artist usually give the record company a percentage of their copyrights to their music. He is saying he wants to have heart.

Tia has been through a lot and hurt in the past, but Mikkey see’s it, and she had no reason to hide.