His response is eww?

Out of curiosity I'd like to know this about my ex. When we were dating long time ago I asked him if he likes his best friends' sister, and he said yes. (that kind hurt me when he said that but w/e). What id like to know here is after he and I ended our relationship I think he and this girl had a thing, his AIM status said "I love you (her name)". So after he and I reunited I asked him do you still want to date her and he said "we're just friends man" I asked him long time ago you wanted to date her and his reply was "eww"…

After this whole time it's ewww now?

I know it's none of my business now but I am curious. So please be kind and give me your thoughts on this. Thank you.
His response is eww?
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