BlackBerry has decided not to renew its contract granting U.S. wireless carrier T-Mobile a license to sell its smartphones, the company announced today.

While BlackBerry is the one that’s officially walking away, T-Mobile did quite a bit over the last several months to help this breakup happen. Back in September, the carrier yanked BlackBerry phones from its physical retail stores, and more recently it offered a promotion that let T-Mobile users trade in their BlackBerry for an iPhone. I’d imagine BlackBerry was not pleased with either of these actions.

“Regretfully, at this time, our strategies are not complementary and we must act in the best interest of our BlackBerry customers,” said BlackBerry CEO John Chen in a statement. “We hope to work with T-Mobile again in the future when our business strategies are aligned.”

BlackBerry said current T-Mobile customers that are still loyal to BlackBerry phones shouldn’t notice any change to their wireless service.