Wife sharing/ Swapping

Does shari8ng my wife with other men, or wife-swapping qualify me as a cuckold?

yes, since a cuckold is simply a husband whose wife is unfaithful......whether he knows, approves, watches , joins in; these are merely variations on that theme.

I first saw her getting fucked by another man on the third day of our acquantance. I went to her house, and, when I got there, the front door
was open, and, hearing a funny sound, I entered quietly, peeked around
a curtain, and saw her on the bed, being thoroughly fucked. I watched
them to completion, (she had three orgasms) and, when she got up to clean herself and him, she saw me peeking around the curtain, smiled,
and got back in the bed, and mounted him, (he was still hard) and fucked
him by "riding horswey."

I first saw her getting fucked by another man on the third day of our acquantance. I went to her house, and, when I got there, the front door
was open, and, hearing a funny sound, I entered quietly, peeked around
a curtain, and saw her on the bed, being thoroughly fucked. I watched
them to completion, (she had three orgasms) and, when she got up to clean herself and him, she saw me peeking around the curtain, smiled,
and got back in the bed, and mounted him, (he was still hard) and fucked
him by "riding horswey."