YOU SAID:

i went to the pub for a drink but then i saw my wifes husband

INTO JAPANESE

パブに飲みに行ったけど、妻の夫に会った

BACK INTO ENGLISH

I went to the pub for a drink and met my wife's husband.

INTO JAPANESE

私はパブに飲みに行き、妻の夫に会った。

BACK INTO ENGLISH

I went to the pub for a drink and met my wife's husband.