I need advice and I cant talk to family. I have been with my boyfriend for 5 years we have a 3 year old girl and a baby boy on the way. I'm 22 weeks pregnant. I just found out last night the he has been messaging girls on Instagram(didn't even know he had one), and on facebook. The Instagram messages are what looks to be model types, but the facebook one is someone he claims he's an old friend with. The messages aren't risque, but she has messaged him at 3 in the morning saying good morning sunshine which makes me severely uncomfortable. I can afford to be on my own as I am a nurse and make more than enough to support myself and two children, but I dont know how to be a single mom. I just am completely heartbroken and dont know what to do or think. I feel like the past five years have been a complete lie.