Ok, first you’ll have to make a decision on keeping them both or just one.
Having space is usually an issue, can’t keep them together because the roots will entwine and one will usually kill the other.
You could put one in soil and try and grow him out but with it not being summer you’ll need proper lighting.
You could buy a seedling tray with a dome and light like I did for clones… But time will still be an issue because you just started flower stage and that takes a couple weeks then flush and dry stages.
So if you choose to separate them just use your shears and try not to cut into the stem of the one your keeping.
If you decide to keep them both youll have to make sure the bottom of the one your moving out has white root heads on it when you cut sorta like this…
This is why I suggested you let it grow out a bit so its easier to see where to cut and it has a root if your keeping it.