DB is doing what works. If it works, do it. But monitor. If it's clear you're perusing too much and it's pushing your spouse away, stop.
ME: 38 BF: 40 T: 10y, no kids, no M (by choice) BD: 7/14/14, BF admits to PA, wants out, lies about new R. 10/1/14: I move out, BF lies about move in with OW 12/4/14: OW confronted, reveals all the lies