I'm a 24 year old guy n there's this girl who used to live in my locality who i've recently gotten in touch with again. She's the a very pretty girl and i've had a crush on her forever. I live in a different city from her right now and we're in touch through whatsapp and mobile for the last two months... I'm pretty average looking but have a very dark complexion coz i'm south indian. At first we two hit it off a lot with chatting long hours thru msging and she calls me every 3-4 days whenever she has the time. But recently she's been giving me the cold shoulder, not too enthusiastic about talking to me as she appears to be busy all the time and i have no idea why this has suddenly happened. She's single right now but has a lot of male friends too.
She's always said that she's impressed by my intellect because i'm from an IIT and got selected into a top IIM too this year, she might be moving to the same city where i'm going to join for MBA next month. I plan on proposing to her when we meet there but i feel that the recent behavior of her is because she's realized that i might have feelings for her. Any ideas on how i can regain her interest coz i've never been that good with girls before and only had a gf for a 3-4 months before this girl. Should i distance myself from her a little, by not returning her calls that often or chatting less with her ---or should i msg and call her more often and risk being thought of as too clingy.