Is she evil for lying?

Keelay
This is a hypothetical scenario but I’m sure its happened before, just not with anyone I know. (Also no I would not do this, but thought about this situation could occur between a couple)
Husband and wife are trying to conceive- the husband wants a baby SO bad and talks about it constantly. Wife gets checked out and she’s perfectly fine. Husband gets checked and his sperm count is barely anything and it’s nearly impossible for him to conceive. He talks about adoption but really wants a bio baby. He’s distraught over the fact it’s “on him”. Wife ends up getting donor sperm and found a photo that looks very similar to the husband. She gets inseminated during ovulation without his knowledge. When she shows her husband the test he’s elated. The child looks like his. 
Is she evil for lying? Why or why not?