What is he hiding? Why has he all of a sudden dumped me as a friend?

(PLEASE READ EVERY DETAIL BEFORE YOU COMMENT. THANKYOU. Okay he said I seem very cool and he would like to get to know me better but doesn't like the fact that I worry alot and said he would maybe like to hookup with me for the laugh and see where that leads to and he doesn't date his friends sisters in fear of losing his friend over it. He said the only way to get to him is by hanging out and until I am comfortable around him to eliminate the nervousness problem. He wanted to be with me last feb because he was so into me and thought I was very cool and that he would hate the thought of any guy taking advantage of me because I seem nice and very innocent and would hate to think if he had himself. and before that night I rang him couple a times or more but at night coz he prefered that and we talked for nearly 5hours. He didn't just text me very late at night, he would text me between 8 and 10, in the day too sometimes and evenings. That night he kissed me I was trying my best to avoid the kiss coz I thought he saw me as meat on legs or that he still wanted his ex Paula so he was very disappointed coz I didn't want to be with him like he did. After the (hanging out)???. He text me appologising about the kiss because I didn't really want it that night and he could tell, I acted very nervous and a bit indecisive around him.He said I may see him in two weeks But before the next day he said "You were right I am still inlove with Paula so I shouldn't have kissed you because it may spoil any chance of us getting back together. No communication for a while even though there was communication the next day and day after. Eventually kim my sis said something about him being still inlove with Paual his ex and Paula and him are thinking about getting back together so if I were you I wouldn't text him and he did say you text an awful lot and he is too busy. Not long after ,I got him and I text him about being friends and he text back, ya we should be friends, we text each other once then nearly the whole night and he said he was interested in me the night he kissed me and then I didn't hear from him for a while. Later on I was craving to see him and text him so we hung out for 2hours and he confessed that he felt like I rejected him the night he wanted to be with me and that he needs to be with a woman to test the fireworks(see if there is a possibiliy of a good relationship as boyfriend and girlfriend which he tests with female friends he is really into and he gets along with. In the car he did the romantic glance at me for 15mins and then he looked away and he offered to be my friend, he made the same glance when Kim invited him over the house but this time I looked away and then he called me over to sit beside him non-verbally. He told my mate Gary that we are just good friends because of kim who he really has been friends with first, he knows I have a huge liking for him and he likes him as a person and a friend and he thinks I am a very nice girl. He said he likes hanging out with me. After I asked if him and his ex were together because I wanted a short romance with him, I never heard from him since. I text him appologising and explaining and asked him over to talk but no reply and he didn't show so I sent him a letter which he got and told my sis Kim not to be texing or sending him letters because he is too busy to have friends and he is back with Paula his ex but thats what Kim told me not him. He said that he does like me plus hanging out with me and before he told her that he doesn't want me in the same room as him, my sis and Paula because I acted all weird around him, it is too much pressure for him and because he was with him one night so he would feel uncomfortable but he denied it the time she spoke to him afterwards when he was numb and said no no no, its not that, I just don't want to come into the house thats all, it's nothing to do with her. But he did say he wants no texts or letters because he is too busy and too busy to be my friend. Is he lieing or is he hiding something from me lads??? Is he secretly still into me or wants me???. Whats going on?. wb. xxoo.