Dear Rana,the civil marriage is a 2 parties contract ruled by the law of the country you are gettin married in and the clauses you determined to have in that contract,now whereas if your potential husband can have another woman on his side thisis before being discused legaly should be disscused among you guys amically becoz one can not live with someone who doesnt love butyes he can marry another woman..

Yes he can have a religious marriage after marrying you,even if he has registered the civil marriage in Lebanon.