Hi Op ,
So sorry that you are also going through it . You have had some great advice .
Don't change the locks as he is still a joint owner .
As you no doubt have already experienced you will go through a rollercoaster of emotions ; shock , grief , anger- on repeat .
I would recommend getting a counsellor as this will help you in the long term . Go with who you feel comfortable with as you may not gel with the first .
This is all on him ; he broke your marriage vows , he treated you appallingly and " tested "out the OW relationship rather than being honest with you and having a discussion about what you both want .
You deserved to be treated with respect and you will no doubt know that deep down you would never have hurt him in the same way . It is difficult to get your head around how someone who was your partner in life and with whom you shared a family can deliberately hurt you in this way .
He is "ahead " of you in the respect that this has come out of the blue for you . He has been planning and checking out of the relationship for months . Morally you are streets ahead and you are the decent spouse who has been blindsided by this .
He will have his own narrative as you have already seen as he has to portray you as the " baddie " in the relationship to continue with the belief that he is a decent person .
You have to accept that he has disconnected from you and he is no longer in your corner . As others have said , do not trust anything he says or does . He has been able to throw away a long marriage without barely a second thought .
Surround yourself with a support network of close friends / family and lean on them . Your children are older , but I would try and not let them be your confidants as they will feel torn emotionally even thought they are undoubtedly angry with your H . Look after your mental and physical health as much as you are able to .
Don't rush to make any decisions , you are still in shock . You may decide one way and then change your mind . Nothing is cast in stone . This is your life and you can change your mind as you see fit . Get legal advice but again speak to your solicitor about the pace / timeframe and what points you can pause and catch up emotionally .
You will find it tough going over the next few months but you will find also that your emotions aren't as up and down as time goes on . This is a life changing situation for you and one of the most difficult things you will experience . Yes divorce / separation is now sadly very common , but everyone thinks that it won't happen to them .
You will look back and find that some memories are tainted . I would ask for sone information from your husband about the timeline etc , so you know what you are dealing with . Don't expect him to be completely honest but it may help you to get all the facts together at this stage rather than be blindsided by them coming out at a later date . If you are able to verify any of the facts through a third party , do so . That may not be possible if they met at a shared hobby and you don't know the others .
Take care .

