When I first "met" him, it was through writing on a dating app / social media and I thought he is an extroverted Fe type. He is quite gushy in writing (emoticons, hearts, etc.) and presents a pretty well-curated social media image (albeit not a consistent one). His social media makes him appear extroverted and social (although I have come to realize that he is tagged in most pictures rather than having posted them himself), but in person, he is quite introverted, doesn't much care about people except for the ones very close to him, and only likes attention when it's related to his music . But other than that, he, as per his own words, "loves being alone with his significant other, playing guitar or playing video games or watching a movie. Or traveling."
SLI makes a lot of sense for him, but the social media presence and gushy-ish writing don't quite fit. However, he is from a culture that I would describe as extroverted and emotionally expressive, as well as image-conscious. He does not love social events, but he handles them like a pro - he is genuinely friendly and warm and charming (to an extent I have not seen in SLIs yet, but most SLIs I know are from the U.S. and Central/Northern Europe).
Or what other type could it be?