<human>: My boyfriend and I have been together a little under 2 years. I am graduating college this year, he graduated last year. He has a job and works full time.

Lately both of us have been feeling twinges of unhappiness. Sometimes we're happy and sometimes we're not. Sometimes we experience the same highs and lows at the same times, sometimes we're opposites. Neither of us has a reason to provide for the lows.

We both know that we want to continue our relationship, but with no identifiable reason for the lows, we're unsure about what to do to fix it.

Neither of us has been in a relationship that's lasted this long consecutively either - is it likely that the honeymoon stage is over and this part just takes more work?

Can you condense the text into three sentences or less?
<bot>: Boyfriend and I experience inexplicable periods of unhappiness. We want to preserve our relationship but we don't know what to do. Help?