Partner did not defend me during a fight. Should I be upset?

I'm a little upset by how my partner chose to handle a fight (not between the two of us) and I just would like some opinions on if I'm wrong for thinking this way.

Me and a couple of his relatives got into a bad argument. It was something really stupid and petty that Relative A started with me. I tried to brush it off and be civil, but I did speak to my partner about not liking what went on. My partner then called Relative A and questioned why they said what they did. This made Relative A mad. They expected me not to say anything to my partner. In return, Relative A told my partner lies about what truly happened and then called the second relative (relative B) who was in no shape or form involved. Relative A tells Relative B a whole bunch of BS. Relative B then ATTACKS me. I was severely abused emotionally and verbally. Relative B was extremely aggressive towards me and didn't even know what happened. They just believed everything Relative A said. Relative B then proceeds to involve ANOTHER relative and tells them I said stuff about them which I did not. This relative was more relaxed and didn't attack me but did mention to my partner I needed to keep them out of any drama. I never involved them though. Relative B did.

I tell my partner everything. My partner does not defend me to Relative A or B. My partner does not correct their behavior. My partner does not tell the third relative I DIDN'T do anything to involve them and it was all Relative B who did that. My partner never told the third relative the truth about what happened. My partner kicked me out for the weekend over this issue and barely spoke to me. Then my partner wanted to start acting normal this week like nothing happened but still kind of seems to be blaming me and says I owe the third relative and apology for bringing their name up.

I am pretty upset that I was not defended and KICKED OUT for the whole weekend over this when I was innocent.

Partner did not defend me during a fight. Should I be upset?
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