The DUP nightmare election aka the Taigs take over.
When you consider the old Norn Iron Parliament in Stormont that always had a UUP majority and never had a nationalist representation in decision making , May will be significant.
"In its 50-year history, only one piece of legislation was passed that was introduced by a Nationalist member, the Wild Birds Protection Act.[which?][4] In October 1971, as the Troubles worsened, Gerard Newe had been appointed as a junior minister at Stormont, in an attempt to improve community relations. Fifty years after it came into existence, Newe was the first Catholic to serve in a Northern Ireland government, but because he was neither an MP nor a Senator, his appointment could last only six months."
The chart under "General Elections" shows how things were pre 1972
https://en.m.wikipedia.org/wiki/Parliament_of_Northern_Ireland