Definitely have a need to write in order to express...not that I can't say meaningful things when I'm around them, show affection. But usually when I'm in love, it means that I love them so deeply and knowing the INFJ, in a complex way ^^. So in order to let someone know what they mean to me means showing them how precious they are to the world in their own individual, special light. Love for me is a dangerous thing. That's why I think i've figured out that I've got to be extremely picky hehehe...
Not sure if many people will agree, but I think in general, it's important to be verbally explicit if you want to SHARE love with someone an remain in a healthy relationship. It's easy to get lost in your own head about your relationship and revel in it, freak out about it, alone. But when you do that, I think you get hurt more in the long run and you might botch things up when you see things that don't even exist. By keeping open communication and telling them where you are in the realm of love and seeing what they have to say, let's two people grow together and get stronger.
Verbal means I think are probably my forte (also since I get a bit shy. When I feel vulnerable, I get really shy and self conscious.) But I also love physical affection, so much. I've gone for about two months without really getting to say anything in person about what i'm feeling to someone I love, because I knew when we met we didn't have a lot of time, and that was when I was falling in love. At that point, I felt like words were spaces between us. I didn't want a single word to keep us apart. Physicality was the only way I could express what I was feeling inside...