Hii i need sm guidance,,hope u will help me,,i m a 25 yrs old indian girl..i m in a relationship?

with a guy who is is abroad,,i knw him completly,we are in contct alwz and he says he loves me,he s gud guy,,hardworking,,,but problem is that although i know him ,,,i jus cant accept his nature,,he s smtimes very demanding ,,people say i luk stunning but he alwz find faults with me like:: u shld dress like dis ,,reduce your weight,,u have to work and studies after marriage,,etccc,,he s very jolly and open with his friends but with me he s very reserve all the time,,,i try to make him laugh etc,,tuff job if i act childish smtimes out of love ,,he says u r not mature ,,hhuh,,he gona tok to his parents about me nw,,,he s abroad and dont have citizenship even,,he luks average even nt tall like me i accepted him as he is but he keeps on demanding from ma side i knw m not perfect but other boys jus fell for me ready to marry me at any cost but i feel for him only but m confused about his nature,,i dont knw hw to make him laugh,,comforatble etc,i tried ma best,,i think 10 times before saying anything to him,,and nw dere s another guy who s tall handsm,,jus after me for marriage,,understanding but m very mch confused and cant say anything to him coz i promised the first 1 ,,,i know i feel confident in front of evry1 if i go with the second guy but the first 1 is loyal,,hardworking ,mature and gona tok to his parents alwz bring gifts for me etc,,,,,,,,,,,,,,,,,m hell confused,,plz help(thanks in advance)