4 . You argue all the time
Have you started fighting over petty issues nowadays? Then try to dig in and find out, for there must be deeper issues that demand to be resolved. If you start shouting at each other regarding the dishwashing turn or movement of the car keys from here to there then things have already got way more serious than it seems. Fighting over small things is an indication of your unhappiness with the big things. If all you guys do is scream at each other, then why are you still together in a relationship?