Loathe to Love You- Ali Hazelwood

Under One Roof
An environmental engineer discovers that scientists should never cohabitate when she finds herself stuck with the roommate from hell—a detestable big-oil lawyer who won’t leave the thermostat alone.
 
Stuck with You
A civil engineer and her nemesis take their rivalry—and love—to the next level when they get stuck in a New York elevator.
 
Below Zero
A NASA aerospace engineer's frozen heart melts as she lies injured and stranded at a remote Arctic research station and the only person willing to undertake the dangerous rescue mission is her longtime rival.