NTA but there are ways and means of phrasing things to people. Your brother is heavily invested in his relationship and you’d have been better off saying “I don’t think girlfriend is really enjoying watching football, and I don’t want her to feel unwelcome when we’re so invested in the game. Why don’t we keep match times as our thing and invite girlfriend over for a movie afterwards instead?”

For what it’s worth, my husband is a huge Liverpool fan and I have little to no interest in football. I learn the players, keep an eye on the fixtures and results, congratulate him when he wins, and insist he watches important matches with his mates because he deserves company who doesn’t get confused when the teams switch sides at half time. In return he keeps me topped up on face masks and pretends it doesn’t irritate him that all our netflix recommendations are in foreign languages.

NTA You are enjoying a harmless form of stress relief in your own home. She is not allowed to control the situation, or change it into HER time. Your brother needs to set some boundaries with her. If she is so insecure that she can’t go have some “me time” for herself when the game is on, it is not your problem. Games are scheduled, so she has plenty of advanced notice to look for something else to do.
Give her a game schedule. Say “This is when I will be watching games. I will enjoy them how I like. There will be screaming and swearing. There will NOT be any attention given to the latest gossip. Plan accordingly. These are the house rules. You are not on the committee that makes rules for this house and this is not up for discussion. If how I enjoy my free time in my own house upsets you, be somewhere else.”

NTA! You “scared” her? It’s a freaking sport where people get extremely excited. I’m American, so you know what we consider football, but many years ago I hated the game. I would get irritated by how people reacted by yelling or cheering, I thought it was ridiculous. Then I actually began watching, and damn if I didn’t become obsessive and crazy myself.

Maybe she doesnt understand the game much? Maybe if you guys explained what was going on and the rules of the game so she could understand? Though honestly it doesnt sound like she would care anyway. Yeah, I’d tell your bro that if she doesnt quit the negativity and dramatics during the game, then she should find something else to do for the few hours it’s going on.

NTA.

However, while you’re not at fault, you should maybe apologise for scaring her. There are many studies which show shouting induces fear and panic in women. It’s a mixture of a biological and social reaction. Even though it was out of joy, you still frightened her. Just saying a little apology will probably make her feel better and cool the air between you both.

Then explain what it’s like for you during a game, and you’re very passionate about it. Youd appreciate if she understood, and would just stay clear to avoid any future upset.

ESH

You’re going to damage your relationship with your brother over a sport and some pride? Insane.

She’s obviously an ass for continuously interrupting and being disrespectful, but I don’t blame her for being scared by a bunch of yelling. I’ve watched someone damage a wall over their team winning. People get ridiculous about sports and, if you already have issues with yelling, it can be extremely overwhelming. Sure, you could argue that she could just leave, but maybe she wants to try to bond with you and participate.

ESH- you’re being insanely childish, while I get enjoying something a lot, thats just obnoxious. Yes, she should have at least stayed quiet if she was gonna reluctantly watch a game just because she wants to be around her bf. No one needs to scream at a game and I hate when the people who do excuse it with “oh but I like the game” well good for you but you sound like a child who just got a really cool new toy.

NTA

If she doesn’t enjoy football then she doesn’t need to be there watching it or interrupting when others are trying to watch it. I don’t like football either so i leave the room if anyone in my house is watching it – it’s not difficult. Her reaction to you celebrating a goal was also ridiculous and to me is a red flag and your brother should be wary of that.

NTA but is this something you really wanna lose your brother over? My dad stopped talking to his sisters for 10 years because they refused to be around or deal with his wife, at the time was his gf.

Not getting along with your brother/sister’s spouse is something that can and will destroy entire families.

So she doesn’t like football but insists on being there when it’s on and ruining it for everyone else? NTA. It’s your house, your rules.

I hate football but if my brother or stepdad have it on while I’m at theirs I find something else to do or leave. Sounds like the gf needs to grow up.

NTA
Even if football is stupid and childish and your screaming terrifies her, you’re allowed to do what you want to do in your own home.

If she doesn’t like it, she can stay out.

INFO: Does your brother warn her in advance that you are going to watch football?

If he promised her to hang out with her, your brother is the AH

I was ready to say otherwise, but NTA. What an annoying buzzkill! Nobody should come to another person’s house and insult what gives them joy.

Y T A – Spurs are a far greater team whereas Arsenal are the spawn of Satan. Had you supported a good team it would definitely be NTA /s