worst pain

So me and my husband were drinking with some friends last night and out of no where he says I want to have a three some. To me this was horrible because I don't think a three some works in marriages cause one person will cause the other if still talking to the person. Or one spouse will be more attracted to the outsider and it will cause problems etc. but the main reason is marriage is supposed to be between two people. When he told me this I told him that's something I wouldn't want to do. Well he got pissed and started to make me feel horrible. He said sometimes I feel like you don't even love me. This killed me even more I mean I do everything and anything he asks this man is my life. We fought till 5am and he fell asleep and I can't sleep I finally got up out of bed at 8 due to I just couldn't handle it anymore just laying there. Everyone is asleep and I'm sitting here just wanting to cry and made feel better. I feel like now that I know this is something he wants so bad it is only a matter of time until he either brings it up again or until I can't please him enough. Both options hurt me and honestly I feel sick to my stomach. I feel gross with myself. I thought me and this man were close and I loved him and now after the things he said to me and this is I just hurt and feel like well I don't know. Please don't leave negative comments I really can't handle it. I just needed a safe place to vent and hear something positive to give me hope.