Can't seem to find anything on this woman, no fb page, wondering if the spelling is wrong. Also curious as it looks like a Polish name, is Catherines boyfriend Polish/eastern european?
I think the spelling may be wrong - there are three Anna Lawrynowicz (with a y) coming up on FB, but none have enough information on them to make a potential match.
However, it does indeed appear to be a Polish name.
JMO