I'm not aware of any research on this exact question so what literature there is is mostly religious or pseudo-scientific. What I do think is fairly well-established is that lack of sexual release makes men restless. Why 'restless' in my case translates to "active and happy" rather than, say, "aggressive and abusive" I don't exactly know. Some factors that may be relevant (but I had not thought of before now): a) My baseline personality is quite docile and submissive, b) Like many people here, I enjoy toying with self-hacking, c) I have lots of projects to pour extra energy into, projects that are satisfying intellectually and status-wise.