There's no way this is real.

However - I'll play along.

YTA.

"Dating."

"Her house."

"Her furniture."

"Her money."

The rude thing here is that people like you exist. If you want equal say and all that - then - you get married, buy a place together at some point, then make joint decisions on furniture. You don't presume to come into someone's home - even if you're at the "moving in together" stage and decide that you're going to pitch a hissy then put her stuff up for sale.

My own home? You better believe that my furniture will be staying put and it's going to take being together for a good long time and eventually married - with a good relationship - before I consider "redecorating to suit someone else."