Allow me to give my impression of BioWare's romance plotline in ME2: (I am a FemShepard)
Jacob: "I ONLY ASKED HIM HOW HE WAS, I KNOW HE'S BLACK AND CHARMING BUT THIS IS REDICULOUS!"
Miranda: "No. Too many issues, she a crazy *****! Also, I always felt like she was either going to jump my girl bones for sex or jump my girl bones and lay her alien eggs in me. Or a knife. "
Kelly: "I might do more than catch you and by that I mean stick my tongue in your [REDACTED]"
Incidently I went with Garrus, he had 'reach' and I prefered him because his immediate 'getting to know you' actually felt like a slow romance, not going from 'Hey' to dongs out in less than a second.
Also, romantic subplots are ok, so long as you don't have to fucking do them.