Was my Alcohol watered down?

i don't drink often. i'm kinda a wuss as far as getting past the taste. Last night i had some peppermint schnapps but only drank about 1/2 of the pint i bought. i had it in the freezer last night and noticed how i could see little floating flecks in it and sometimes i'd wince at the taste. my hubby put it away for me, putting in a jar w/ a lid and put it in the fridge. i just got it out and poured it in the same type of gl i was drinking out of last night. i noticed that i couldn't see the flecks and wondered if the fridge/freezer difference could cause that. And it was surprisingly less strong tasting. I think he put water in it but i always give the benefit of the doubt. i was gonna freeze it as i would expect the h2o potion to make ice, but life's too short and i gotta get in bed, so do you think that he watered it down or is there a good explanation? Would it being opened and then put back up cause it to taste less intense?