What’s wrong with me? [The Plant Says]

What’s wrong with me? [The Plant Says]

In winter, this plant was nothing but bare "woodiness". Come spring it was the healthiest I've ever seen which I thought was thanks to moving it into the house & placing it near a North facing window, (it was a beautiful mosaic look for such a long time!). I guess because of it's complete 360 I expected it to come back again because I haven't changed a thing, (regular watering), except I gave it indoor plant food 2 weeks ago but it was already looking sad. What's going on?! I considered maybe it needs a new pot? I can't "take it outside" because it'd be fried in this heat :\
my apartment (north syracuse, ny)

my apartment (north syracuse, ny)

Plant ID Help

Plant ID Help

Plant ID!

Plant ID!

Vern is looking good.

Vern is looking good.

The very first thing I planted this season.

The very first thing I planted this season.

My room

My room