<human>: Can you provide a brief rundown of the text in within 3 sentences?

I have had a 10 months long relationship with a woman who is 12 years older than i am. At first it didnt seem like a problem to me. But recently im having doubts about the future of us two together. this is the longest relationship i have ever been in (longest i had was 3 months) . I was so excited and blinded by my own passion of being with this woman, but now the age gap seems to be a bigger problem than i have thought. Furthermore, she is completely attached to me and would be devastated if i leave her. I feel so bad and irresponsible to this woman that my immaturity is going break her heart. I realize that i have much to see and do atleast for the next few years before i even consider having a child/family. Before meeting her i was a mess and i have learnt so much from her and grown up because of her. But now i have things i must do (mostly traveling and putting more into my business). How do i let her go gentlely and even be good friends afterwards? Or is that too much to hope for?  Am i gonna end up like an asshole breaking this poor woman's heart.
<bot>: my gf is 12 years older. Now its been ten months, i dont think its a good idea to maintain this relationship. But now she thinks im her everything, what should i do, how fucked am i?