please help with advice, new here, H in mlc

[HBT]

Its so hard to remain in the 'as if' mode around him. He says he is confused and acts it too! Was somewhat affectionate today. But, he is definitely getting used to the new sitch we are living and that seems entirely strange and hurtful to me. I know it is to him as well because he keeps apologizing! He again 'stopped by' today to see (us) but only to exit in another abrupt manner. I feel like I'm losing my mind. He had no reason to go; just wanted to...or not to feel the guilt any longer for not wanting to be here??? I feel awful...