13.1 Issue During Install Attempt

During install, I have to do manual partitioning because the only area for install
is the free space on second hard drive. Which free space is 29Gb.
Which you woyl think is enough...but oh no.. openSuse 13.1 arbitrarily decides
to try and reduce the NTFS partition on there by 7Gb ON TOP of the 29Gb that
is available.
So, I did NOT install, and went with another distro that did not go against my
wishes during install.
Decided to post here and ask "Why does this distro do its own thing and ignore
what I tell it to do?".
Any ideas here?