Romanian language is not same with Aromanian.
Aromanian might be a dialect of Romanian language.
However,on all land of Romania there is spoken only one language, Romanian, there are no dialects.
Romanian language,unlike Aromanian, has around 25% of the words cognates to Slavic languages.
2.7% of Romanian words are cognates to West Germanic languages.
This is a clear proof that Romanians as a people and Romanian language formed on current land of Romania,after Slavic migrations and Romanians did not came from South of Danube.
2.7% of the words cognates to West Germanic languages can be explained only by the contact that the Dacians had with West Germanic speakers.
And West Germanic speakers were never present South of Danube.
Want example of Romanian basic words cognates to West Germanic words?
Meshter in Romanian, same meaning with Meister from German.
Treapta, a step from a stair, from Treppe (stair) in West German.
Compair to trepte ,plural of treapta.
And so on.
Romanians also have R1b-U106,fewer or more,they also have lots of Eastern European admixture and 20-30% NW European admixture.
Another clear example that Romanians were in Romania,and not South of Danube, when the Slavs came:
In the areas of Romania that were not under Roman Empire occupation, snow is called "zapada".
This is cognate to Slavic zapadati, which means snow falling.
In the areas of Romania that were occupied by Roman Empire, snow is called Nea.
In Aromanian language,snow is also called Nea.
Which shows that actually, Zapada comes from the Dacian language, not from Slavic and that Dacians language had some cognates to Balto-Slavic/ProtoSlavic languages.
Because all Slavic speakers took a Germanic cognate for Snow now,calling either snjeg or other variants.
Also, Romanian folk language has the word Doina, which is a song of melancholy,or so, cognate to Lithuanian Daina.
Daina in Lithuanian means a song.
Slavs do not have this word.
This is again,a word from Dacian language,that was kept in Romanian.
Another word that shows Romanian language formed on current land of Romania:
In Romanian,we call neck "gat" cognate to Slavic glutu.
In Aromanian, gat is called "gusa" from latin geusiae.
This is a word from basic words,so it cannot be borrowed from Slavic,but it is inherited from Dacian and was kept.
A lot of Romanian words from basic language are cognates to Romance languages.
So Aromanian language formed South of Danube .
And Romanian language formed North of Danube.