No, it is Covert because you didn't tell the other person. What your talking about is a unilateral contract. Another word for Covert Contract is "SECRET AGREEMENT".

You make a deal, only you don't tell the other person about the deal.

M 53 W 54, M since 98
D15, D19
8/2013 discovered EA, W maintained contact with OM
until 10/14
7/2/17 W said she wanted S, 7/25/17 moved out of MBR
12/17 W says moving out 5/18, W still in home.