Cassie Randolph is “still processing” her ex-boyfriend Colton Underwood coming out as gay on Wednesday, April 14, a source exclusively tells Us Weekly.“She was not made aware in advance that he was going to be on GMA doing a tell-all,” the insider says. “To be honest, she hasn’t really had time to navigate how she feels about it yet.”Underwood, 29, opened up to Robin Roberts on Good Morning America about his struggles with his sexuality on Wednesday, revealing he’s known he was “different” since he was 6 years old.“I couldn’t process it and I couldn’t put my finger on what it was until high school, my freshman year when I knew I was gay,” he told Roberts. “By that time, I had already grown up in the Catholic Church, I had gone to Catholic