Hello, saw the Arabic thread so had to pop in. My DH is Syrian and I'm English.
I went to Arabic evening classes for a year but gave up when got PG as felt too sick. Also, I have a hearing problem which makes the whole classroom situation pretty difficult so am now looking for personal tutuition with a student or similar so I can get reduced rates as standard personal tuition is so expensive.
DH talks to DS in both English and Arabic and I try to use what little I know of Arabic with him - numbers, names for things etc and he's picking them up very well, but obviously learning more English than Arabic. I do want him to be fluent in both though, hence my quest for a tutor. Makes sense for me to learn it as he spends more time with me than with DH.
As for Islam, I am a convert to Islam so DS is being brought up in the faith - have no issues with it at all.
Moving on from the language issue though, your DH sounds as if he's got problems and needs some help. His behaviour is in no way normal at all. My DH does change a little when we go to Syria - noticed it more when DS was born - he was 100% hands on when we were at his mum's house but as soon as we were at dinner parties with the wider family, it was left to me because that's what is expected over there - the women do all the child care etc but he had apologised in advance for it and was doing it for a quiet life so it was fine to go along with. Your DH sounds somewhat different though....if you need to chat, just let me know
Hugs
Puss