I'm 17 and I have awesome friends but it seems that I'm not being a good friend. Should I change?

-This situation didn't happen only once but it happened at least twice.

I had a good friend since I was fifteen and it seems like it all went down hill a year after that. At a certain point, I rarely talked to her and that has triggered some misunderstandings. We went through quite a number of arguments and I didn't know what to do. All I can do was to listen what she has to say to me through instant messaging/phone call and all I could do was to apologize.

Everything was alright after that but it was never the same again. Every time I see her, those things that she told me in the argument refreshes in my head and I could feel that my heart was being stabbed.

That was situation number 1.

Situation number 2 is happening right now and it is with a different person.

This friend of mine is talkative and he is extremely friendly. My friend and I used to have phone calls and we share a lot of things with each other. Until quite recently, we rarely talked to each other. He has been down for quite sometime and at a certain point, he took two weeks to test me out - to see whether I'd call him or not.

(For all I know, I am actually very insensitive to certain situations. It'll take me quite sometime to understand or to realize what is going on.)

I never called, thinking that he would be studying and the last thing I'd want to do is to disturb him.

He told me what was going on and I didn't know how or what to reply him.

I feel extremely terrible to actually loose friends that easily. No, I won't loose them completely but things will never be the same as before again. Like what happened in situation 1, we aren't as close as we were anymore.

I have a feeling that I have adopted this attitude from my very anti-social parent and I don't want to blame my parent for that.

Is there a way where I could change? I know, being myself is what it matters but what if being myself hurts more people and I may not even realize it?

Help me please.. this would be our final year of high school together and after that we'd be going separate ways. I want this final year to be as memorable as possible. Thank you.Maybe you should change. But the best thing to do to them is to say it face to face with them and apologize to them. Not just a lousy I'm "sorry". ....Think about what to say if you think it's really your falt. Hope I helped :)You have learned from their mistakes and you will never forget what they did to you. So now do you think you can forgive them.