How can he do this online - I don't undertand Iphones etc - anybody else know?

I'm online on facebook posting updates etc & my guy is offline (chat is anyway) when he suddenly jumps on & likes one of my notices. How did he see it if he wasn't on line? Is he hiding so it appears he is offline? He has an Iphone & h liked it basically as soon as I pressed th post button so I guess he was online anyway?

Or is he following my account or something? I'm only wondering because when I send him messages he takes flaming ages to reply so I guess hes ignoring me but can he see my messages straight away? Totally confused

IPHONE, WIRELESS PRODUCTS, REMOTES?

I'm wanted to take photos and videos with my phone but hate the idea of always having to be right there to take them.
Are there any kinds of blue tooth remotes that would enable me to take photos and videos from a distance?

IPhone 4 iOS 7.1.2 microphone

I bought a 'refurbished' iPhone 4 a while ago. When I first got it the sound on video and other recording apps (slo motion recorder, vine, voice changer etc) worked. Now when I record no sound comes out. There's still sound coming out of the voice recordings and auto rap (app). I have checked settings to make sure the microphone isn't disabled and tried re-setting my phone and neither have worked.
If I can't fix this I find that I won't be able to enjoy the pleasures of a smart phone.

Is iPhone 6 Plus worth the extra $100?

Is iPhone 6 Plus worth the extra $100?

Added (1). I bought a used iPhone 6 Plus with 128gb storage off-contract for $600. I love that phone and the size and everything about it but I now got a great deal on a 6 with 128gb storage for $500 off-contract (I'm using prepaid with my carrier so I don't have a contract). Should I sell the iPhone 6 Plus or the 6 before the new iPhones come out in September? I love the Plus but at the same time I spent $600 on that phone which is almost as much as my monthly rent.