Is this young Filipina some sort of scammer?

Filipina I met online: feel like something's not right. Pretty, innocent-looking girl, almost 19. Dresses well. Says she lives in the Batulang slums near Cagayan de Oro. Says she has 8 siblings and 2 parents. I asked her to send me a live photo of her home. She did, but there was no one visible in the photo. I asked. She said the kids were out playing. But it was 6:15am there!!

We have spoken via phone 3x. Heard kids in the background most of those times. Fun and normal -- she actually speaks English well.

I know cell connectivity is sketchy over there. But will disappear for hours w/no warning, then come back with a "hi honey" or “hi handsome” Apologizes for her connection not working or her charger not working.

We use Facebook to chat. From that, it would appear that she's who she says she is.

I'm 50 and smart and so on; USA citizen. Have dated many here around age 30. But not 18!!

After only 3-4 days messaging: "I love you. Goodnight." Huh?!?

I know from the phone calls that her connection isn't so great. But the online messaging is odd because she comes and goes with no rhyme or reason.

She hasn't asked for money but has reminded me several times that she's poor and needs to work hard to save up for college starting this summer.

She says she's 5'-3", 90 lb. I think her photo suggests more like 100-105 lbs. It doesn't matter to me -- the only reason I point it out is that it is one of the many things that seem just a little odd.

Opinions?