I haven't seen him for a year. He is more built and got a promotion at his work too. His personality has changed too, he was quiet and timid and now he is bold and assertive and I don't know what to think about it. He complimented me and flirted with me, and once when I was tying my hair, my shirt went up and he tickled my belly and I was taken by surprise, didn't expect that. If he likes me he should ask me out right?