Husband cheated, left, trying to DB 5

[SteveLW]

I dont want to be petty, and I dont want to miss a chance at interacting if I should be interacting with him, but part of me just says I should go out the back when he comes in the front and go on with my night.

As little interaction with him as possible is what you should be shooting for. Not sure if the front and back thing is right, but whatever you can do to limit interaction is what you want.

Also, we have a family wedding coming up next weekend. I didnt tell H about it and asked if he could watch the baby that night. He said he could. But now I am getting nervous about being asked where he is, and if I should ask him to join me or what.

Go without him. When asked he is at home with the baby. Which is 100% true!

I cant catch a break. His birthday is coming up as well and I dread how to handle that. Im thinking a simple Happy Birthday will be suffice.

Don't even acknowledge it. Happy Birthday is what a W would say to her H. He fired you as his W. If your daughter was older and understood birthdays I would advise you to get him a card from her and have HER give it to him. But she isn't!

I wish so badly we could just sit down and talk. Im afraid if I avoid him like I am thinking, it will just push him even further because he will see me as angry. But if I am too pleasant I feel like he will take it like im just going to pretend to be ok with this all, which I dont want to do anymore.

What will sitting to talk accomplish? Who cares if he is angry? Whether you've avoided him or been pleasant, it hasn't kept him away from her, has it? At this point you have to let it go. He is either going to decide to be with you....or her. You cannot control that, it is his decision. What you can control is whether or not you will be okay or not whether he chooses you or her! So work on being okay no matter what.