Meh I don't need Ash...I got Mr. Chubbs...or my little space-hamster.
I actually like Miranda...I just didn't like how they well did what they did with her body at every turn.
AND JACK is AMAZING....I thought she was going to be Bi in ME2...but I was wrong. Don't forget Shepard also got Samara.
Samara feels more...tragic...But I love her. I also kinda want her to hook up with Zaeed 
I tried to suffer through one "stay with Kaidan" run...which I messed up because I took all the bitter conversation options in the beginning, which breaks the romance.
Kaidan was the reason that 90% of my ME2 female Shepard stayed romance-less(which Modin always took it as she had a crush on him
)
So ME3 first PT of course I went with his romance...After that I change to Garrus. Then a few months later, I think...maybe I was too harsh, I should gave him another chance, so I started a new PT romancing Kaidan, but some major romance scene convo just bother me too much I have to skip most of them, at certain point of the game I just goes "No, this is ridiculous.*Cullen tone", and went back to Garrus never looked back... 