My favorite character, member of my squad and FemShep romance from Mass Effect: Garrus! He's so badass and he's really cute when being romantic. Probably one of those handsome alien you'll see out there haha!
When I played ME3 I accidentally choose an option and ended up romancing Traynor and I felt really bad... T_T Garrus was already my romance in ME2 and wanted to continue it so bad I ended up replaying the whole ME3. Now I really want to play the DLCs to see more haha!
Speaking of accidental romances... when I played ME1, as maleShep, I wasn't trying to romance either Ashley or Liara, but I wasn't mean to either of them, so at one point they both approach Shepard and tell him to make a choice. I'm sitting there like "wtf I don't want either of you." XD So there was an option for each girl, then a third option, something like "Well maybe the three of us..." SO OF COURSE I had to choose that one. XD! Ashley got mad but Liara was still interested, I was like "please stop." Later on when it was time for the romance scene I got Liara by default. It was so stupid. XD So yeah, I know what you mean by accidentally romancing the wrong character. I wish Bioware hadn't made it so easy to do that! XD