Was he asking me out, like a date ?? 10 points?

Ok this real sweet guy who I'm kinda good friends with asked me if I would go with him to his friends sisters 15,(quince). I sorta know her but not enough to be invited or whatever. When i said i ha had plans he was willing to try to convince my mom himself if i could go with him! ;o,, And when I said I didn't want to go ( I had actually meant the thing I had to do on sat not that) and I cleared it up he said o I thought u didnt want to go with me I was like :((,,so was this like a date? Some of his buds would have been there , none of mine, but still I barely know them,, Any helps is appreciated!