help I like two guys!?

[Amy]

well I'm 13 in year 9 ( don't say I'm to young because I just want a real answer) Aaron is 14 year 10 and Liam is 15 year 11!
I have been talking to Aaron on Facebook since 1st July and we have sent each other over 2700 messages, and we call each other- cute, bbz, bby, and al, that.. but we struggle to say hey at school because we are both shy, I don't really like his friends because they think we are getting together and when ever they see me that always shout Aaron at me. Aaron isn't the best look but he has a nice personality.
I have known Liam for a while but we have only just got talking I went into town today and I passed him in tesco, he said hey amy, to me and I just smiled because I got really shy, I kept seeing him in town and we just kept looking at eachother because we were in two different groups. he said he thinks I'm cute and that we should start talking in school. Liam is really good looking and has a cute personality

the only thing is if I get with one I feel I am letting the other one down I just really need some advise please!
yes you are wrong I had cancer when I was 9 and I scared boys don't like me for who I am and not the illness I had