Giving someone space when they are having an affair is NOT reccomended.

I don't reccomend pursuing H either.

My advice is pretty consistent on this forum

Expose to any and all friends and family who will support you and apply PRESSURE on H to END his AFFAIR.

EXPOSE to everyone you think may support you.

While THEY are working on your H, you can sit back and get your bearings, this is a lot to deal with I know.... but your family can be much more effective and objective than you, so ask tehm to support you and apply pressure.

YOU will be confronting OW.