HI aidandylan,
-your H is cycling,back and forth.Evidently he can't break the cycle and you are going to have to break it.I can't imagine "letting" him keep going back.I would have to detach and say o.k. ,either you want to be with her or be w/me.You detach yourself and then work on you and start DBing.I agree with other poster that it would be like starting over each time.(If a person is an alcoholic they can't keep having just one drink,they have to stop completely.)
I know you are afraid and don't want to lose your H,most here feel the same,but if he is still seeing/OW you don't completely have him now.You can't be agreeable to his behavior.K


Me-39 H-39 2-sons M-21yr H had PA 6yr ago