I'm sorry that you've had to come here, but this forum will be a great support to you. It's very frustrating at first on moderation, as my posts took days to show up. Use that time to read as many threads as you can. Even if they don't seem to be quite like your situation, there is a lot you can learn from them.
Also, on the sticky at the top of the forum is Sandi's 37 rules. That needs to become your new handbook to figure out how to interact with your H. Some of the ideas are very difficult to implement at first, but they should give you good results.
Be thankful that you have six months. Many here have had S's walk out and move in with OP, filing for D almost immediately. You've got time to get some good results and improve your life, regardless of what happens in the M.
And I agree with Vera about checking to make sure the counselor is pro-marriage. Many traditional counselors encourage people to do what will make them happy in the short term and may advise divorce. You can google pro marriage counselors to make sure they'll work for the marriage.
Keep posting and feel free to journal here, especially when something upsets you and you'd normally want to contact your H.
M36 XH34 M-5 T7 4/11 H confused 5/11 ILYB 6/11 OW discovered 7/11 I move out, OW over 5/12-OW2,done->new EA, but H wont file 9/12 H "best bf ever" to EA/OW3 3/13 H/OW break up H files 4/13 D 6/18/13