Some closeted bisexual/homosexuals use womanizing to camouflage their true preference. Hollywood has many such examples. As for known examples of Hitler being in a physical relationship with women, there are few and he was reportedly "peculiar" to masochistic in his desires.
The homosexual stuff I think all comes from the Ernst Roehm faction of the Nazi Party which was purged by Hitler in 1934 the infamous Night of the Long Knives purge. Roehm was a notorious homosexual and quite open about it, very unusual for that time period.
The left has obsessively buried and obfuscated much about the Nazis. Sexuality is but one such area. Wartime psychological profiles of Hitler address the possibility of his homosexuality. Be careful about online versions of his psychological profiles, the original scans such as the widely linked to version at Cornell University has been deleted and other online versions revised so, you can't really trust what you are reading. Best to obtain an original copy via interlibrary loan at your local public library.
I would highly recommend you obtain a copy of the book The Hidden Hitler by Lothar Machtan ISBN 0-465-04308-9. The Hidden Hitler documents in a very well researched and referenced manner the homosexual milieu that Hitler lived in and flourished from his early years in Vienna to the Fuhrer.
I actually read that book a few years ago. As I recall, the evidence was rather circumstantial. There were some movies made a number of years ago, one with Richard Basehart, with a Freudian twist suggesting Hitler may have had Oedipus Complex. As Hitler was beaten frequently by his drunken father, it is natural that he became very close to his mother who offered love and protection. Stalin too, came from a very similar type of background, brutally beaten as a child by a drunken father. No wonder both men became such callous brutes as adults.