Do I have a right to be mad?

That's my question I keep asking myself. Do I have a right to be mad? About a month ago, Ford got off work early. Ok. A day that they didn't have to work until that morning. They had already put in 4 12 hour days. Friday was a day off and that meant a 3 day weekend. Anyways, off track here. They all hung around the yard and had drank beer. By all, that also included the female truck driver (whom, I never met and he had lunch with one day). Ok, fine. Whatever. I don't mind that he has beer, stays late. He works hard. What I do mind is the fact of no phone call. Got over that. Done.
Ford's brother has been now seeing female truck driver. They came over to the house on Sunday. But guess what? I didn't know she was with him. I had seen brother was here. I was inside getting stuff ready for this week. Going about my business. They sat out in the carport for 1 1/2 hr chit chatting and having beer. What the hell!!! They left when, I told the kids to come in and start getting their stuff lined out for school this week. That's when one of the boys told me F's brothers girlfriend was out there. What the hell again!!!
I am pissed. Not just plain pissed, fire breathing pissed. So, I asked Ford about. What I can't meet brothers girlfriend? Are you embassared by me? His words "No, I just didn't think about it" Your wife is inside getting everyone's stuff ready for the week, and you just forgot? Our house, and you don't think about your wife being inside? He told me to let it be. To forget it. No! Not on your life buddy. I want answers.
On a side note, yesterday I woke up with an earache. Ford gets off work early and lets me know that brother and gfriend are coming over to get bikes. They get here and he wants me to meet her. Go to hell dude. I barely, got out of bed yesterday, because of said earache. I am in sweats and my hair is matted to my head, cotton in my ear, and dragon breath. Not happening, but I am the one making it an issue.
Yah, maybe, I should have meet her. But come on, it is another women that my husband hangs with and I need to look my best. Right?
I tried to ask him how he would feel if "I had a male come over, hang out in the kitchen, drink some wine and do some cooking?" It would be ok, why? Because, any male that would want to do that is gay! and he has nothing to worry about. Ok! It's your story and I am sticking you to it. Let's find out!
But, the real question is, do I have a right to be mad? I think I do but he tells me to get over it.