I have never replied before, but could not keep quiet after reading your post.
Whatever you do, do NOT stay at Art Hostel Gallery! I made that mistake once
There are no real male only rooms (there were also girls in that room when I was there). The 'male only' room is the living room of the 'hostel' which is a house and everybody has to walk through the living room in order to get to their respective 'girls only rooms'. Said room is also the 'lounge'. You have no privacy whatsoever, because the doors cannot be locked. The toilets are disgusting and there is no air conditioning.
I hope you have not paid for your stay there yet, otherwise good luck