[sR.Kumo]

I honestly don't know if I can call it "falling in love" with the game, so for that reason I'll just describe it as getting very attached to the game...
Falling in love with the game itself implies it was something to do with the game, but for me honestly, I don't think there's anything about a game that makes me like it.
For me, the main thing that causes me to be attached to the game is the community I find revolving around it, and whether I manage to dig myself a spot in that community.

+ [Further explanations & examples] +

The primary examples I can speak of for this are Minecraft, Runescape, and Starcraft II.

+ [Minecraft] +

I first started playing Minecraft around February of 2011, and I got into it because my group of friends in the school I was at, convinced my to start playing it.
This immediately meant, I had 4 IRL friends already playing the game. As great as online friends are in a community, in my opinion nothing can replace IRL friends who play it too.
I started off playing on private servers with them, that they hosted, playing adventure maps and small survival worlds. Two of those friends left that year, though. The remainder of us went on a public server, and one of the friends who left that year also joined us there. after that, when there was just me and one other friend left actively playing, we found another server, and because that friend of mine was still there, I still enjoyed the game thoroughly. On that server, we found a community to be a part of, and I made friends with various people, many of whom I'm still in contact with, and a few of whom I've met when I've travelled countries :3
Although that one last friend of mine left, I stayed playing the game because of those online friends of mine.
Over the course of two years, that community sort of dispersed and dissolved, and no longer played the game. I've tried to find other communities to be a part of for Minecraft, but all I've found seem too tightly knit for me to actually get into, and I'm no longer really motivated to play the game.

+ [Runescape] +

I started playing this ages ago, and because of how Runescape was at the time, there was no large online community that you could be very tightly knit to, so I just had a few IRL friends (two friends of mine, and my brother), and one or two online friends that I very regularly interacted with on RS. The game was great fun, levelling together, questing together, trading, PvPing, and everything else that the game involved. Over time, my friends stopped playing, as as Runescape got more and more different from the runescape I loved, I gradually stopped playing.

+ [Starcraft II] +

I started SC2 because some of my online friends (who I've known since I started playing Minecraft), recommended it to me. Although I rarely play with them anymore, I still have a community to call my home, so I still actively play the game. Although at times I hate the game, and at times I love it, I couldn't imagine stopping playing it as long as I had an active community to be a part of while I played it.
That's also the reason why I tried to join a clan the moment I got here, since it's much more fun for me to be a part of a clan within a community, that's like double the motivation to keep playing :3

Originally Posted by mGGNemesis

I love a game like sc2 which is mentally challenging, requires certain skill and ability, isn't repetitive and senseless (was playing fb games for a year before sc2 was out) and the social aspect of it keeps me going.

I created extra facebook accounts so I could send myself gifts on Pet Society and Yoville (y)