I don't THINK my wife has been sleeping around....

[Burgbud]

I would still want her back and would try to win her back.

Then it will be much easier for you to hold onto the correct mindset if you don't find out, especially since you don't really believe anything too serious is going on (there are different levels of EA, though, some more serious than others). Just stay with that thinking for now. If she does have something going on you will probably see the signs, though that's not guaranteed.