As long as you have no joint finances you will be fine.
Speak to a couple of companies as you may not need an IVA - other options are available. If you have no assets, a DRO is one.
Sharing from experiences of dealing with debt
The greatness of a man is not in how much wealth he acquires, but in his integrity and his ability to affect those around him positively.
£14k is a modest level of debt for an IVA, so do, as Kalis, suggests, explore the other options too.
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014
Visit my blog here : http://foggy.blogs.iva.co.uk/
As Kallis says if nothing is in joint names currently then your partner shouldn't be affected.
I also agree with Foggy on the amount, it is quite low in the scheme of things for an IVA which will have a very long term impact on your ability to obtain Mortgages, etc so best to explore all the options available to you.
All the best.
IVA Mortgage Expert
Zebra Money Centre