Help please advice!!o?

ok i have been with my bf for almost 5yrs we have 2 kids a 2yr old and a 4month old i just dont know what to do he keeps talking to all these internet girls and i knoww...he tells me hes never gona cheat on me somethimes i just feel like leaving him and moving on, i think whats holding me back is im a home staying mom hes the one working. he just keeps telling me hees tired of me not working he even makes me cry (very sentimental) but now its really hard to find a job specially with 2 babies....what should i do?? i just feel like crying now man..:( no one understands my situation :(