i dont understand his answer can you please help?

I have a rule that I only break up with violent guys/cheaters via text/email just because I don't wanna see them in case something gets out of hand. 'Sorry its not a good time for me' to me says that he doesn't want to be friends at the moment which is perfectly natural as its still pretty raw.

'I don't wanna be rude but I have some issue to solve' sounds like there was a typo and he was accusing you of having issues. That indicates anger and hurt and also resentment that may be because you dumped him via text/email or more likely the fact you've hurt his ego.

He definitely agreed with the break up. He just can't tell you directly. It's like. "I need space" or " i need to find myself" etc. Guys don't know how to handle this kind of situation so they end up saying many things like it's really their fault and admit everything. He doesn't want you to concern a lot too.

You dumped him via email/text?...Well, he's a gentleman indeed then; what he meant was that you're so immature and shallow that he has more important things to do than deal with someone like you:(...His reply expresses disappointment in you; and rightly so.

He probably didnt even read your text message, but knew that you messaged him. He just straight up texted you that response. If this is the case...well that sucks when he later reads it.

Moon,

Do you and your boyfriend actually transact breakups via e-mail/texting? You do understand that is bizarre right? Who cares what he means or, for that matter, what you mean?

Yes, he needs to deal with his own problems

You should call him, like... Right now! And ask him about it. Or... Ask to meet somewhere. So it's legit.