Is it normal i don't feel bad?

I've had massive changes in my social life very recently, and although I suppose saying I don't feel bad about it at all isn't right, really I feel mostly good about things.

A few weeks ago I broke up with the girl I'd been dating for more than a year, I love her but we were so incompatible than thinking about spending the rest of my life with her literally made me shake with fear. My friends said that after hanging out with her I always looked so emotionally drained that I looked dead inside. One of them said, ''don't take this the wrong way but you weren't your usual happy, jackassy, self''.

Following after that, a few weeks later, a couple(we'll call alex and sabrina) I was friends with broke up and I asked the girl out. I was hesitant to do this because I knew it would ruin my relationship with Alex but I thought I could actually see a long term future with sabrina so I went for it. I felt bad about hurting the guy's feelings but I weighed my relationship with him, vs a possible happy long term relationship and went for it, from there on all hell broke lose.

I burnt my bridges with Alex and sparing a long story things didn't go well with Sabrina and I lost two friends in that. There are two others who were close with the Alex who things now feel strained with. So that's 4 people things are awkward with not counting my ex.

Continuing on another friend of mine(I'll call Richard) has been, acting like a complete dick to a mutual friend (I'll call Einstein) of ours and whenever we tried talking to him about it he just deflects and comes up with an excuse as to why its not his fault. My relationship with Richard has been strained for a while but now because of the way he's been treating Einstein but its gotten much worse since the other day. The other day Richard brought up how it was wrong of me to have asked Sabrina out and what I did to Alex was wrong.
Now I had expected him to say this at some point, that's fine but its the way he did it. While Richard had known for days what I had done he waited until we were at the cafeteria table with a bunch of other people who had nothing to do with this and spent about 20 minutes assaulting my character. He wasn't asking questions, or simply explaining to the others what happened, he was out right insulting me and dragging my name through the mud in front of these people who had nothing to do with the matter. Rather than come to me as a friend in private as I had done in the past when I had issues with him, he waited until he had an audience to assault my character.
After those events I talked with him about this and he still tried to give reasons why he wasn't at fault for his actions and now I don't think I want to be his friend.

This post ended up being much longer than I had initially intended. The point of it is although some of the changes I've listed are obviously bad and some good, I find it strange that I'm at peace with it all. People normally get very uncomfortable around change but I'm quite happy with it.

This past 5 or so weeks everything in my social life has changed and I don't feel bad about it IIN?