<human>: Give me the gist of the text in a nutshell

i just then dumped my girlfriend of close to a year, she has two kids, aged 2 and 4.
at the start of the relationship the kids were not an issue, they have a horrible biological father, he was abusive to there mother and is a suspected pedophile.
i love her and wanted to provide her children with a father figure and a better life. she is currently trying to get full custody, he gets supervised fortnightly visits at the present moment.

the honeymoon period drifted away we had the usual arguments blah blah blah.

we were exited at the thought of having another child after eventually buying a house together.

but recently an old feeling of wanting to travel the world has become the only thing i think about, im going to the mines very soon, and when im not working i want to be traveling, so she wont see me often, i didnt see that as fair on her so my gut told me to leave, so i did, i feel very terrible for breaking her heart.. i just feel i would be held back while away.

i love her, and i havn't ruled out getting back together, i confused, help and questions will be appreciated,
thanks..
<bot>: i would like to have sex with another girl, but if i  do so and want to get back with her, it will spoil it. thought i should add in my sexual intentions because i am young.