Can proof of infidelity give me divorce from bed and board?

My wife wants a divorce, we are currently living together trying to figure out a separation. I am pretty sure I can get evidence of infidelity with the use of a PI. Neither of us wants to move out of the house. If I have proof of infidelity, can I get her removed from the house by divorce from bed and board?

I am just trying to figure out what the evidence will gain me. I know it will void alimony. But I do not think I will pay much alimony.

You must allege fault to obtain a divorce from bed and board, and adultery is one of the grounds for the same. A divorce from bed and board, if granted, authorizes a separation, but does not mean the judge will order your wife to leave the home.