Watto, to answer your question to me they were "together" for about one month before moving in together, lived together for 3 months and then he pursued her for 2 months. Then I went dark, took a VERY firm stand and he started making changes.
I suggest you back WAY WAY WAY off, if OW contacts you ignore her! Let your H FEEL what being without you REALLY feels like, not having OW to comfort him.
Now it's the time to be calm, cool and make yourself unavailable
Me: 35 husband:39 Sons 16 and 11 from my first marriage Twins 5 (boy/girl) Daughter 3 Affair bomb 2/27/14 He moved in with ow 3/13/14 OW kicked him out 6/15/14 4/2016 he seeks help for sexual addiction