I've been with my semi-dual for over 6 years now. (me NeFi, him SiFe)
We do have some political differences, but solved further arguing by banning politics from the home. After 6 years, he's allowed on some political forums again, and spends it on local news commentations and such. I refrain from reading what he writes, as I'm pretty sure I wouldn't be able to keep my mouth shut and a huge blow up might occur.
That is probably the only real problem that we've had. We've had a total of 3 arguments, and those were within the first 3 months. Since banning politics, there's nothing to argue over.
I feel lucky to have him. He's patient with me, even though some of the things that I do annoy the heck out of him. He doesn't trigger my insecurities except once in a blue moon. Our favorite shows/movies are completely different, but we do have some common ground ones.
In all honesty, mostly, we have completely different lives, and just sort of meet at the middle (at home) so to speak. I think that this actually helps our relationship. I'm not interfering with his stuff, not asking Te of him, and in similar manner, he lets me pursue my 'odd' projects, even supports them financially sometimes, and doesn't ask for Ti from me.
Where we do meet, is the Si/Ne. Our Ne differs a bit, but we still find it enjoyable to explore some ideas. When I see him painting his game miniatures, I get totally turned on. Similar seems to happen to him when I'm working hard on figuring some theory (like socionics, a couple of years ago, lol).
He would definitely like me to be more firm in my wants, being more clear about what I want. But at the same time, he and my brother enjoy setting me up in situations that they know I'll likely do if I'm feeling good. Such as making a comment to one of the local radio personnel out of the blue in some electronic store we passed them in. Basically, he's learning how to use my moods for entertainment value, lol. (not in a negative way, mind, nor in a manipulative way)
I do miss some things, though. But all in all, this isn't a relationship I would give up easily.
I've written about our relationship before: http://www.the16types.info/vbulletin...tml#post531221