So should I reassure her that there isn't another woman today?

Should I tell her something like "God hasn't brought me this far for me throw away the character He is building by having an affair, having a girlfriend, spending time with other women, or even having inappropriate conversations."

Me 40
WW 41
D 4
S 12
S 14
BD 6.16.2015
W stopped wearing ring 9.4.15
W Filed Divorce 9.14.15
My ring off 11.15.15
D finalized 12.18.15
WXW (wayward X wife) moved out 1.28.16 got her own place