<human>: I've been dating a girl I met online for about 4 to 5 months currently. In the beginning everything was fine, she seemed happy, and pretty normal. As it went on, she showed me scars from self harm she use to do, had a small episode, and started showing her more negative side. I dealt with this, and after a month everything seemed normal. Flash forward to roughly a month ago, I noticed her being a more pessimistic person, conplaining about work, family, money, and people. I also started getting down and figured it was me carrying her weight of pessimism on my shoulders. So the last week I took some time away from her before we go on vacation, and noticed she has been making me depressed and sad, and I'm not sure if I should break up with her now, before this vacation, or weight and see if something changes.

I am now not sure if I should just ended it with her with these problems and what I have come to notice, or should I go on vacation with her, give some more time and see if anything can come of it.

Could you distill the essence of the text into 1-3 sentences?
<bot>: girlfriend went from a happy optimistic to a pessemistic. I'm about to go on vacation with her soon, but I reliazed I'm happier when not around her. Help?