Hi there, Italian - I'll put in my two cents here:
First of all - is this MLC? Well - no - not exactly. It's more what's been called "Quarter Life Crisis". Your boyfriend is a boy who hasn't started to grow up, and wants to just continue being an irresponsible boy.
Is he also depressed? Maybe. Will he regret losing you? Most likely.
Is he a partner you should invest in? NO!
I understand that you have been with him since you were quite young, and that you love him and may have a hard time letting go of the future you had imagined with him.
But to my way of thinking, you're this young and he's already showing you that A) he has the capacity to cheat and B) he has a tendency towards depression and C) he isn't willing to do what it takes to fix the relationship.
You sound like a smart, capable, self-actualized woman. You deserve a man who is capable of being your equal. It really doesn't sound like he is that man.
