"My aunt had a really messy divorce."
"My aunt" 「叔母」
"had a really messy divorce" 「離婚ですごく揉めたらしい」
"divorce" 「離婚」
"My aunt went through a really bad divorce."
"went through ~" 「〜経験した」
"a really bad divorce"「すごく大変な離婚」
[離婚](https://eikaiwa.dmm.com/uknow/questions/34705/)についてもっと詳しく知りたい方はクリックしてください。
When my aunt got divorced, she seemed to be disputing a lot with her ex-husband.
When my aunt went through her divorce, it sounded like she was feuding with her ex-husband all the time.
この場合、次のような言い方ができますよ。
ーWhen my aunt got divorced, she seemed to be disputing a lot with her ex-husband.
「叔母は離婚した時、元夫とかなり揉めたようだ」
to dispute a lot で「かなり揉める・争う」
ーWhen my aunt went through her divorce, it sounded like she was feuding with her ex-husband all the time.
「叔母が離婚を経験した時、前の夫とかなり争ったらしい」
to feud with ... で「…と争う・反目する」
ご参考まで!