<human>: The situation is thus:

At the moment I'm living with two other girls ('Sue' and 'Lesley') in an apartment in the middle of the city. Our lease expires at the end of June.

Sue has decided to go overseas to university for a year and leaves at the start of September, and is staying in the city until then working full time to earn money.

So Lesley and I have got another friend, 'John,' to come flatting with us, and the three of us are looking for a nice place in the suburbs. Sue keeps talking about how all she needs in the new place is a couch or somewhere to lay her head... But I really don't want that to happen because she'll be paying hardly any rent, if at all, wherever she does sleep will have all of her stuff, and it's not fair on us when we just want to set up a home for ourselves. She's relying on us to find a house that either has an extra bedroom (in which case we'll be screwed trying to find a fourth flatmate when she leaves) or a large lounge.
Also bearing in mind that our new semester starts at the beginning of July, so she'll be there for that first month of classes taking up space.

The problem is that I'm really non confrontational and neither are the others.

Can you give me the gist of the text in a nutshell?
<bot>: Need to break the news that third flatmate can't come with me and second flatmate when we move to our new place, because she's going to ditch us in a month to go overseas.