Yeah. I'm in a currently shaky relationship with an INFP quite a bit younger than me. At least I think he's an INFP. He's always tested INFP, but he could be a messed up (hahah, sorry INFPs) INFJ, or INTP.
Unfortunately, he has big issues that likely don't relate to his being INFP, but I don't think those super-sensitive cognitive processes of his help him out any. He's overly dependent, especially emotionally, to the point where it scares me about his future, and he has major intimacy issues. Even though we've been through thick and thin over the last couple years, and have been talking even longer, he doesn't know whether or not he loves me.
Besides the dependency, though, is his way of painting everything with a false brush of pretty. I know it says INFPs are known for that, but it's to the point where reality becomes lost to both of us, since I want to trust and believe what he says about things, and then, you know, my being INFJ, I realize it's just a front, or something else.
He's quietly manipulative. It drives me literally batsh*t, all of it. So, needless to say, even though I love him dearly and he's definitely good looking, as you're all saying, it's becoming more and more likely to end.
Very frustrating. Oh god, sorry for the vent. I never get to talk about it anywhere. ;(