I think i was being ghosted

So my now ex was texting me less and less. I was getting frustrated with him and I kept trying to talk to him but he refused to have a serious conversation with me....I asked him his opinion on an art piece that I was submitting for a competition and he gave me a sketchy response....not wanting to argue I laughed it off....for the next week I’m not getting any word from him...no calls....no texts....nothing

Finally I decided enough was enough and I called him tonight telling him that I don’t think things are working anymore....

I get no reaction what so ever....none....he was just like yup i agree this should end.....no emotion in his voice....nothing. It was like I was calling him after he already broke up with me to break up with him but I didn’t get the memo.....

So question....do break ups really happen like that? Break ups have always been hard for me because I don’t know how the other person is going to react and I don’t want to hurt their feelings....

I feel so angry right now because he has been acting different for about 3 weeks and I’m pretty sure this was on his mind but he never said anything.... I was reaching out more and more and he was responding less and less....

A part feels like I shouldn’t be angry though and another part is thinking why the hell wasnt he honest from the get go