<human>: Summarize the given text in a few sentences.

I live in a flat with 7 others (17-19 M/F) on a Uni's campus for our, mostly, first year of University. We have never met before this but come from similar areas, for the most part. We share a kitchen with two large fridges and each have cupboard space.

On Friday I bought a bag of frozen popsicles and stuffed them into the shared freezer, in the back.  On Saturday morning around 11am I noticed that it was gone.  I looked everywhere and asked everyone, two people were out for several days, but no one had anything useful to say about it. One of the flatmates has been pestering me about how no one stole it and how it's stupid and get over it (etc...) every time I ask someone else(She likes to interfere a lot, she is also the oldest and the only in second year, and has almost a vendetta against me for absolutely no reason but that's another story that I may need help with later).  Using simple deduction it's simple to point out who didn't do it but that leaves two people who could have but not enough evidence to blame one of them.

Everyone in the flat though takes it as a joke saying it's just a bag of popsicles but I tried to explain that it was blatant theft by someone who is also willing to lie about it.  A majority of the flat looks at me as if I am crazy that I'm trying to figure out who took them and consider my actions random and ridiculous for even getting them.

Do you think that they have a valid point? Is there any advice to handling this? What should I do if they suddenly show up again?  Should I try to find answers or should I give up in my pursuit?
<bot>: I buy delicious treats and find the whole bag missing in under a day. I try my detective work and most of the flat considers me crazy for caring about such a small thing.