The story I heard was Pete was so into the junk that Honeyman-Scott, also into the junk but a little better at holding it together, demanded that one of them go, and Chrissie chose Pete to go.
I liked them both, but honestly, I don't think the Pretenders missed a beat. Billy Bremner and Tony Butler came in to do guitar and bass on "Back On The Chain Gang,", and they're brilliant. And then Robbie McIntosh and Malcolm Foster did the next album, and they were also brilliant. And IMHO it wasn't until Martin Chambers got the boot that they started to suck