How Do I Cope With A Cheating Husband?

I need advice on how to cope with a cheating husband.

I have always suspected that my husband was cheating on me but confirmed it recently when i found some condoms were missing from our home n his bank statement showed payment for a hotel when i was away on a short trip .when i confronted him his stories ranged from his friend took it to i was mistaken in my counting n to i went to the room but changed my mind n left without doing anything. but his behaviour showed he was sorry for about 2 weeks then back to normal. problem now is i cant bring myself to trust him n my love for him is reducing daily.when he comes home late from work or doesn't take my calls all i can think about is that he is with another woman. To be honest it's killing me slowly cos i find myself calling him n quarrelling with him constantly. 

I dont think i can leave him cos he cheated on me cos lets face it most men do i just need advice on how to cope with my emotions cos i m soo unhappy n its affecting every area of my life . Sometimes i feel like paying him in his own coin but i m a one man kind of babe.

I just want to concentrate on my kids now but how do i cope with being suspicious all d time n being jealous n bitter n a whole lot of emotions thats killing me.