The best thing to do when looking information about any game is to type the name of the game into Google and add "wiki" to the search. Wiki sites are incredibly detailed - and they always warn before revealing spoiler material. In addition, I find these sites to be much more reliable than discussion boards.
For Mass Effect 2 go here: "masseffect.wikia.com" You will find everything you need.
Speaking of love interests... I'm looking forward to the resolution in ME3 for those who cheated on Liara. Considering she threatened to flay people alive for not paying her, what's she gonna do to someone who broke her heart?
Good point. Liara would probably wait until the Reapers are defeated, then tear Shepard to pieces. Talk about a painful way to die!