<human>: I met this girl who is totally my type physically; down to the kinds of clothes she wears, but i can't help but keep my distance because of our age difference. She's made it pretty obvious that she's into me. She attends school and is in a very time-consuming and difficult pre-med program but has weekends off (usually) so she likes to plan our weekends literally an entire week ahead. Like we hung out this weekend and last night before going to bed, she asked if we could go watch a movie Saturday.

I am into her too but it's just weird trying to get intimate with her only because of her age. There are times where we will have a conversation about something (music for example) and she won't get my references which just makes me take a quick step back. 

Is a 7 year age difference a big deal? It may not be so bad if she was 30 and I was 37, but I feel like at 18, she's just a wild cannon. I'm also coming off a relationship where I got cheated on and I can't help but think that one day she will just cheat... simply because she's young and just doesn't know any better...

Can you give me a shortened version of the text?
<bot>: My own insecurities about age difference keeps our relationship stagnant. Is the age difference enough to walk away from her? What should I do?