I think ill have someone break through, but I am a lot more lonely than I probably should be. Ill try and give you some of my perspectives in hope that they help you!
I don't get out much, don't drink so me meeting random people fucking blows.
I am basically unable to speak when i don't know what I am talking about to what I perceive to be a high enough level. Basically, I can talk your ear off about something that interests me... but on any conversation where I view my input as nothing more than just trying to meet social conventions I fucking suck. I remember reading something about this once on INTPs in regards to small talk... that we hate it that its talking just for the sake of talking. There is no meaning to it.
Over time, as people hang with me and I find more common interests I go from the guy that was "Chill as hell but never spoke" to "Holy fuck he's nerding out again... jesus man you have been ranting on X subject for 30 minutes" not romantic, but how most of my friendships go is that I will slowly open up and I mean SLOWLY early on I am just there to be there and don't really talk and its almost like I am feeling out how everyone else interacts. What is socially acceptable? I might be having a great time, even if I am quiet but I don't know how to react. Once I begin to understand and break out of my shell I can really talk someones ear off on the right subjects and honestly be someone people really like because I start to let my humorous side out.
So, for me to be able to connect with someone we have to be able to talk about common interests and be able to have a substantial conversation. I am (and most people would say that INTPs in general) fucking bad at picking up on romantic cues as well. I have been told that I am "the most oblivious person alive" when it comes to picking up on signals.
The dream girl I would want? Honestly, I know a lot of people might think that since NTs are considered smart that intellect would be high up, but for me I wouldn't say that necessarily.