Teen Mom 2alum Kailyn Lowry’s ex Chris Lopez has never been one to be shy of outing her secrets on social media — and now he has claimed the former reality star turned podcaster is engaged and getting married in September. During an Instagram Live on July 28 that The Ashley’s Reality Roundup caught, Lopez outed Lowry’s alleged big news. “You’re engaged currently, getting married in September,” Lopez explicitly said of Lowry and her current beau Elijah Scott, whom Lowry shares three children with. “And your three children don’t even got their father’s name.” Lopez continued ranting about how Lo…