He was a trainee teacher when I was 17. He was 24 at that time and we just didnt had much to do with each other besides our english lessons. I graduated from school and lived in Birmingham for 2 years. When I went back to my hometown I met him in a cafe a few weeks ago now and I gave him my number. We were texting a lot and I invited him to hang out. We've been doing that a few times and he finally asked me on a date. My sister says its weird but I'm 20 and he's 27 I dont think its a big deal we didnt flirt during my schooltime so do you guys think its weird or ok ?