"At the end of the day, we've always been dysfunctional, which is why we haven't talked in months," he wrote. "But we never did. In the 8 years we have been together it has always been that way."
DeLonge also pumped up his Modlife media company, his band Angels & Airwaves, as well as comics, books and a film he's developing. He said, he was basically pushed out of the band because of his other commitments.
"All of these other projects are being worked, exist in contract form– I can't just slam the brakes and drop years of development, partnerships and commitments at the snap of a finger," he wrote.
He continued to say that he had tried to communicate his issues with his bandmates, but it only created resentment.
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"I wrote this same letter to them a year ago," he continued. "But it created a massive argument, the biggest one yet actually. I just wanted us to do things we all agreed on. But that was their moment to dig in. From their view I was controlling everything. In reality, I was scared to put myself out there again."
DeLonge said that he'd written his bandmate's managers in December, who told him they weren't angry with him and agreed with some of his "ideas of how to grow the band." But then the news yesterday that the band was moving on without him came out, taking him by surprise. Then his former bandmates went on to further expose him in an interview with Rolling Stone, where bassist Mark Hoppus quoted emails from DeLong's manager and drummer Travis Barker suggested the band only reunited because he had a near-death experience.
"This is new to me. It's not in my nature to fuel negativity about the legacy of the band on something as trashy as the Internet world," he wrote. "And even as I watch them act so different to what I know of them to be, I still care deeply for them. Like brothers, and like old friends. But our relationship got poisoned yesterday."
"Never planned on quitting, just find it hard as hell to commit," he added.
Read DeLong's entire "letter to the fans" here.