<human>: Can you summarize the given text in a few sentences?

Hello guys,

So me and my girlfriend have been together for 11 months, then we broke up and 6 months later we got back together. That was 4/5 months ago. 

Until a month ago everything was perfect. I have no clue what changed, at first we didn't get on at all. Now when we're together we have the most amazing time and couldn't be happier at all, theres nothing wrong. As soon as we're apart we start worrying about eachother, we get sad and angry really easily. 

How can we fix this?Does anyone have any idea what went wrong? 
Thanks
<bot>: me and girlfriend get along amazingly when we're together, couldn't be happier. when we're apart we get sad and grumpy. what to do