My friend just got out of a toxic, but sexually beneficial LTR of 6 months + by finally breaking up with her. He has come full circle on recognizing his oneitis and wants to change. He spun plates in his LTR, but still has the emotional attachment to his ex.

(He pulls HB 8+ all the time and isn’t concerned about abundance mentality. He isn’t sexually attached to her, but the emotional ties are still there)

What would be the best advice to give him? He is being honest with me for the first time about his attachment and can’t get past this without help.

I figured I’d turn to fellow brothers for some clarity. Any and all advice is appreciated.