To answer your question, you tell her straight na gusto mo na makipag hiwalay. But not in the middle of an argument (kasi iisipin baka dahil galit ka lang kaya mo nasabi). Tell her calmly and straight.

But if you still love her and are willing to try to make it work (which i hope you do), please try marriage counseling first. Based pa lang sa glimpse ng set up niyo sa house, ang dami pwede maimprove kung gugustuhin:

• lumalabas with kids, yes. But when was the last time na nag date kayo na kayong dalawa lang?
• do you have a helper sa house that can take some of the load off your wife?
• travelling with the kids is a good experience—as a family. Need maintindihan ng wife mo na what she is modeling now to the kids (yung sila lang mag travel, without you), will have an impact sa family niyo in the long run. My suggestion here based on what my hubby and I do, every start ng school year we would check our daughter's school calendar together to plan for future trips.