There were so much sniping and backstabbing in the party

[Bassim]

I am wondering if my sentence sounds natural.

There were so much sniping and backstabbing in the party that in the end it imploded and split in two.

[GoesStation]

Write There was so much sniping etc. "Imploded" ("rapidly and violently collapsed into iself") contradicts "split in two".

[Bassim]

Would me sentence be correct like this:

There was so much sniping and backstabbing in the party that in the end it broke down in two.

[teechar]

Would my sentence be correct like this?

There was so much sniping and backstabbing in the party that, in the end, it broke down split into two parties.

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[Bassim]

If I delete "parties" would my sentence be correct like this?

There was so much sniping and backstabbing in the party that, in the end, it split into two.

[GoesStation]

The usual expression is it split in two.​ With that amendment your sentence is fine.