The 24-year-old was close to a switch to the Allianz Arena last summer only for the transfer to fall through, but the player is refusing to dwell on it.
The 24-year-old, who has a contract at the BayArena until 2017, was on the verge of signing for the Bavarian giant last year, but eventually opted to remain with die Werkself instead.
"My employer is Bayer Leverkusen," the 24-year-old told Express. "When it was clear that the deal was about to collapse, I accepted the situation. That was fine with me.
"I have a contract until 2017 and feel very comfortable at Bayer. We've played good football. Generally, I don't look back and rather focus on the future."
Leverkusen finished third in the 2012-13 campaign, securing a Champions League spot after a one-year absence from the competition, and Bender is looking forward to the challenge.
"We have a tough season ahead of us with the Champions League," he said. "It's great that we will participate. We have achieved more than it was expected from us.
"Of course, we would like to end up in a similar position next season, which will be difficult."