Hello Sweetmonkey, can we offer you a warm welcome.
I'm sorry I have to agree with RX, but please stay with us, it's just our opinion and the thought of having your ex stay with you and then join your husband and go to the football may be beneficial if you had believed they would be OK together, sometimes this is possible and times where it couldn't be organised.
The problem is your husband has driven all your friends away, so it was a huge gamble asking your ex to come over and stay and unfortunately it didn't end very well.
If your husband doesn't want to get any help and doesn't remember what happened, then you need to make a decision whether or not you decide to separate, hoping this may make him realise that he does need help.
At the moment you are caught in an awkward situation and please remember that you may need help as well, just so you know how to cope with this situation.