Yeah forget Flash games then, that's more for a hobby. You say you have images on your page? Is that the game page in your signature? Because beside the banner for the page, you have no images for the games on that download page. I wouldn't try to get your friends to play them if they keep making excuses. I would say you're expecting too much from Facebook; FB is better to update fans you've gained, than try to get people to go download your games. Same with a YouTube channel; getting viewers on YT alone is hardwork. A following can be achieved on YT, but expect it to take a long time.
I spent about 5 minutes searching about the virus thing, and some people are saying that it is related to GM 8.1 and earlier; so I presume you're not using GM:Studio? It's been a long time years since I've really used GM 8.1; but doesn't it publish games as an Executable? The size of that executable might be triggering anti-viral programs. But I'm not sure; I am just guessing. I cannot really help you much in terms of mobile app games, as I'm not really interested in that path. But the more traditional routes games take (Youtubers playing them, etc) don't work as well for drumming up interest for app games. That is an entirely different market that I don't really understand; lots of toilet games, etc.
Some things which may help with that path, is getting a cheap tablet or something, and just going around, letting people play your game from your tablet, then let them know where to look, to get it for themselves on their phones / tablets.
the app market is REALLY growing rapidly. Apps are the future I think.
They are part of the future, yes. But PC gaming is also growing, and unlike the app market, games on PC aren't as limited in how they are designed or developed (control methods restricting genres, etc). I mean, one of the big games of 2015 was a GameMaker game that could only run at 30 FPS (Undertale).