Relationships are so hard to deal with. Whether it's between your spouse, children, girlfriend, boyfriend, siblings, co-worker, school mates etc. When my wife and I first got married we were having a rough time with our relationhip. To help us, we really studied this verse. I encourage you to do the same. 1st Corinthians 13:4-6 "Love is patient, love is kind. It does not envy, it does not boast, it is not proud. It is not rude, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. Love does not delight in evil but rejoices with the truth." If you just do the first two things in this verse it will greatly help your relationship.
goodshepherd/GS_Foundations_Ch13.aspx