A person who lives in solitude -

Recluse (noun): 
English Meaning - A person who lives alone and avoids going outside or talking to other people/ Someone who lives in solitude. 
Bangla Meaning - যে ব্যক্তি অন্য মানুষের সঙ্গ পরিহার করে নিঃসঙ্গ জীবনযাপন করেন; একান্তবাসী; বিবিক্তবাসী; সন্ন্যাসী। 
Example Sentence - He is a millionaire recluse who refuses to give interviews.

Other options, 
Ambivert - A person who has features of both an introvert and an extrovert. 
Socialite - Someone, usually of high social class, who is famous for going to a lot of parties and social events. 
Convivial - Friendly and making you feel happy and welcome.

Source: Cambridge Dictionary.