Men seem to have a lot more leeway for women's lies as long as it doesn't involve another guy or spending too much money.
All cheating wives cheat by choice though the circumstances of each wife are different for doing so.
I get accused of gender essentialism every time I suggest ways to show respect for the man of a relationship.
Be mistrusting of his ability to handle things on his own.
There is no 1 answer that fits all but if all of your boyfriend cheats and dumps you after a period of time you could be the problem and not them.
Refuse to allow him his own time.