wa'alaikumsalaam dear sister
According to Quraan, Allah says that:“And tell the believing women to lower their gaze (from looking at forbidden things), and protect their private parts (from illegal sexual acts) and not to show off their adornment except only that which is apparent (like both eyes for necessity to see the way, or outer palms of hands or one eye or dress like veil, gloves, headcover, apron), and to draw their veils all over Juyoobihinna (i.e. their bodies, faces, necks and bosoms) and not to reveal their adornment except to their husbands, or their fathers, or their husband’s fathers, or their sons, or their husband’s sons, or their brothers or their brother’s sons, or their sister’s sons, or their (Muslim) women (i.e. their sisters in Islam), or the (female) slaves whom their right hands possess, or old male servants who lack vigour, or small children who have no sense of feminine sex. And let them not stamp their feet so as to reveal what they hide of their adornment. And all of you beg Allaah to forgive you all, O believers, that you may be successful”
So according to this ayat you should keep your hijaab, beacause if you disobey the laws of Allah just to please a human being even though he is your husband, is totally HARAAM! your husband should realise the importance of Hijaab,. Never consider hijaab as a compulsion for women because Allah has decreet this for all the women of Nabi (saw)' Ummaat. and He has a reason for it.
You should be able to explain this to your husband