Would somebody please tell me.......

what is a Unicorn?
_

Debora:
Now I get so miserably angry I just have to go to my room to sit by myself.
(30 May 2018)

Debora:
For two years I would cry at the slightest provocation.
(30 May 2018)

Arcelia:
I think my wife is cheating on me?
(30 May 2018)

Arcelia:
I am at a loss and do not know what to do.
(30 May 2018)

Arcelia:
But promised she didnt do anything physically- We started marriage counseling and shes digging up everything ive ever done wrong and I think its just a way of making herself feel better for what shes done but still swearing she did nothing physical.
(30 May 2018)

Arcelia:
I leave and after a while she says its the same ex bf.
(30 May 2018)

Arcelia:
I confront her about it and she says she doesnt know who it is.
(30 May 2018)

Arcelia:
It prompted me to look through the phone records and there was a number every single day for about 45 minutes a day that I didnt know.
(30 May 2018)

Arcelia:
I decide in my head what the heck is going on?
(30 May 2018)

Arcelia:
Fast forward to my current circumstance that has taken me off guard.
(30 May 2018)