He was with Erin for years.. longer than he ever was with Mia funny enough lol I think the show just tried to paint it another way to make Mia look the good one. She literally got with Manley and got pregnant by him when Erin was 7-8 months pregnant
He wasn’t even broke up with Erin through her pregnancy either, he just went straight from her to Mia after seeing Mia out on a night out. Wrong. Erin is a mug but she wasn’t treated very well and probably has emotional issues because of going through all that.. She shouldn’t be using her child as a weapon either which I’m guessing she is doing to punish Manley. Let’s hope Maggie and Marliyah still get to see her.