Im considering breaking up with Gf dont know if that decision is too extreme. Advice?

Hi all hope you are all well.

For context, my Gf 21F talked with me 23M over the phone about recent updates as far as a case that she had reported. I know this feels wrong to air out but it ties with the story and kinda gives context as to why I feel so on edge in general emotionally. Pretty much she had a tragic incident where a friend of her sister had committed assault onto her months prior to us dating officially recently. (Disclaimer: this friend is cut off/reported and has no relation to friends discussed below). This feels out of place but it will make more sense soon as I explain.

So tonight after she gives an update to the case she brings up her and her sister going ATV riding. She says how her sister and friends are going and how her guy friends are going too. I was taken aback not because of the guy friends initially but with the news she told me of the case and the immediate succession to going out (in other words my brain was just scrambled + the emotional factor as the case contained bad news). At first my thought was me feeling uneasy with the guy friends whom I hadnt met and marked myself as insecure immediately. However the more she explained the more my uneasiness felt more justified. She explained how a lot of the girl friends brought their plus ones / boyfriends and it made me think why she didnt bring me along considering she knows im off all weekend including friday.

I got word from those close to me who heard the plans that they also felt it was weird that she didnt think to invite me but was essentially asking for permission to go. This wasnt in a scenario of me asking them it was weird but them pointing out it on on their own accord. When she asked me I said hey I dont necessarilly feel uncomfortable but Imma get back to you since my mind was scrambled (which wasnt a lie).

However, this situation brought red flags pointed out by those close to me. I told her other factors such as her guy best friend (not included in outing) being a very bad person as she had told me and him being emotionally abusive to his now ex. By emotionally abusive (saying he doesnt love her, intentionally leaving/breaking up, verbally hurting her etc). It was brought to me that her and I had very different discernment and morals regarding boundaries as far as who we keep in our life. In addiiton, they brought up how her no having the foresight to invite me despite a few other people bringing their partners/random +1s the sister knows felt off.

Are these red flags big enough to consdier breaking up over?

TLDR; Gf is going out and asked directly despite there being other couples and knowing im off. This brought up red flags to I and others hearing the situation and knowing his lack of discernment with people she keeps company with.