Waa pole.Many men are like that, but dont allow the devil to destroy your marriage.Prayers can change things.

My hubby had kids with 3women  and he could not even hide it but I moved out venye nilijuwa I will stand by my kids hata akikata kuwasaidia saa hii as we are talking all three women hakuna ako naye he is just hopeless somewhere in the village

Waa pole sana

First let him know you already know he is cheating
Secondly don't give devil a room in your marriage, quitting your marriage will not solve your problem probably it will add more problems kagendo will take advantage and get in your shoes well well
Thirdly separation really affects the children to anxtent of being depressed think twice
Love your self and start leaving for your self but not for that man
Act as if nothing happened while arranging your new chapter silently
Move when you are ready and stable to cater for your needs n that of children mean while act cool let him think you are foolish for not over reacting mpaka asahau na hizo maneno
Ukimuliza he will denie but leave it act as if you understand diyo ujipange while in that house na pesa yake vizuri na ujitume ukiwa stable utoke na usahau nayeye
Ukimuacha ukiwa jobless kitakulaba my friend wait until you settle and you will thanks me later