Is it normal to be talking to my ex band teacher?

Is it wrong that I like my ex band teacher? He's 51 and he's married and has two children. I started liking him when I was in the 7th grade. We would flirt a lot I guess. He was so playful. He would have two spray bottles layin around and sometimes he would spray me. So I would run for the other one and we would have water fights. I would take cover behind the bigger cased instruments. And he was nicer to me than most of the other studentz. My friends told me that when I'm absent he would be mean and rude to everybody. One time I switched middle skools for a month and I herd he kicked a chair and was really angry. I never seen him explode before. In the 7th grade I told him I was going to start calling him batman and if he wanted he could call me batgirl. Sometimes he would and I would get the butterflys. In the 8th grade he sat in front of the chalk board and I drew ponytails on the back of him and told him he looked cute n he smiled. Then I told him the math helper said I had a weird laugh and my band teacher said he thinks its cute...I know this is inappropriate but I played with glue in his office and he took it from me and he asked if he can put some glue on the corner of my lip. Of coarse I said no. And he kept on insisting but I still said no..he seemed mad and went back to his computer. I felt so awkward. What do you think that ment? Anyways when I left middle school I would call his office phone to talk to him. I tell him my problems things that go on with my life. He's always been there for me. He gives me advice and comfort. But he told me he cant always talk at lunch and I said I'm sorry for bothering u I guess I should let u go and enjoy your lunch. But then He said, hey...can I have your number?I said sure! And I gave it to him and hung up. We only text about my problems or when I miss him and want to talk. When I go visit him he always stares at my eyes. Everytime I look at him he's looking me in the eyes. And now I text him way more often. I told him I had something to get of my chest. He txted wat is it? But I kept beating around the bush. An I said ill tell u when I vist you next time but then I couldnt say it. I didn't have the courage. So I tried calling him and he was like are you going to tell me? And I didn't...so I just txted him...batman I really like you. And he didn't txt back. So the next day I sent a txt saying if he didnt want to talk to me anymore Ill understand. Then he texted back saying that we need to talk. so I go visit him and we have our normal talk and then I asked him what did he wanted to talk to me about. He asked me what do I mean by I really like him? I said I find him very attractive. Then he told me that he was really flattered but that I was his former student and he tried to be a father figure to me. Then I said oh, I guess I looked disappointed because he said but if he was a 30 or 40 years younger he would. Then he said how can I put this? And i said, what without hurting me? He was like well yeah and I said I do get what you're trying to say an I have put some thought into it and then he said of course you probably have your smart... you're attractive and then He said when you're 40 years old and if you still feel the same way u should let me know and he made me laugh. Then I told him I did since seventh grade and it just happened out of the blue and that I didn't intend For it to happen. Then he told me that when he was Reading the first text message he almost flew back on his chair.he made me laugh again. Then when he toltd me when he read the last message about not wanting to talk anymore, he said he does wanna talk to me and he does like it when I come visit him and tell him about my day and my problems and how I'm doing. He says when he thinks about me that he cares about me an just wants and the best for me. Then he said I hope having this talk doesn't make You stop seeing me because I like to see you and hear about your day. And as I was saying bye to him I give him a full hug and then as I was turning around he said don't stop coming to see mee and I said don't worry I wont. But i really dont know where he wants to take this from or if he truely cares