I feel upset about what you said to me today. How dare you accuse me of being dishonest. If you know me, you would know I am a honest and loyal  person. I dont tell lies because I know the hurt they cause. I chose to be with you because I love you. I know the rules of a relationship. Do you think that if Im talking to somebdy that I am flirting with them? Dont be ridiculous, everybody  who can see my profile can see that I am in a relationship with you.

 "If you know me, you would know I am a honest and loyal  person. I dont tell lies because I know the hurt they cause. I chose to be with you because I love you. I know the rules of a relationship."

Eğer beni tanıyorsan (biliyorsan), dürüst ve sadık bir insan olduğumu bileceksin. Ben yalan söylemem çünkü  ben yalanların zararları biliyorum. seninle olmayı seçtim çünkü seni seviyorum. Ben bir ilişkinin kurallarını biliyorum.

A learner try at that bit

 Good translation.

Thank you for correcting my try gokuyum!