Communicate, if you don’t understand this now, you’ll understand it later. 

Be truthful, otherwise it provides trust issues later down the road. 

Don’t assume what happened, it makes you look like an idiot or you might say the wrong thing. 

Let the small problems go, if it’s not worth the possibility of ruining the relationship, don’t bring it up. 

Let the past be your past, if you’ve been cheated on before, try your hardest to let it be in the past, not the present. 

Love your significant other’s flaws. 

Be understanding, they might have some other things going on you might not know about. 

Try your best.