not sure if I am the exact right person to give any advice. but I am going back and forth between hating myself and liking myself and my life right now. so I am aware if the possibility to change.
Of course this is none of my business but I would not recommend making a decision like breaking up when your depressed right now.
I am not myself when depressed. one day I was really shocked about myself not caring about my family anymore although I know I love them. depression does that. or I wanted to stay away from them because I felt I was only a burden. but it's not true. they care and they don't want me to stay away. they told me many times and when I am depressed I just cannot accept it. but when I am better I know that they really want me around no matter how bad I am.
there is a tendency to isolate when depressed but it makes things worse.
depression also causes not to care about oneself anymore and consider suicide.
when these ideas are in my mind I feel very indifferent about myself and basically annoyed by my own existence.
but it changes. it can change.

it isn't me who is thinking that in a way.
I always try to remember what I would like or think when I am okay and not depressed and be aware that it will be like this again.