It might be possible. Most of the time, when someone is guilty of something they will try to pin it on other people, usually by grilling another person with questions. But don't jump to conclusions, especially if this boyfriend is someone special. Maybe he's just a little bit jealous.
Don't count on dreams with such a serious issue such as your husband cheating on you. The subconscious can pick up many things during a given day or, you even watch something on TV where a husband has cheated on his wife and if you are not confident in yourself you could have a dream where your husband is cheating. If you want to know for sure because you heavily suspect he is then sit down and talk it over (good communication skills.) It is probably not likely he is cheating.
He is most likely cheating or hiding something he doesn't want you to know about. It would seem very unusual for your husband/wife to act in a way like that. If the phone bill is average one day, then the next it's crazy and out of hand, he/she has been talking to someone constantly, and if it isn't you then you need to look into that more.
Cheating is cheating no matter if the woman is married or single. The only difference is the man involved feels he can have a wild affair with a married woman without commitment because she will most likely stay with her spouse and the man cheating will stay with his spouse, but if he should have an affair with a single woman she may want him to leave his wife and commit to her.
He is most likely to be cheating if he is staying out late nights
If you think that a girl is cheating on you, then she is most likely not worth your time.
* It is best to keep out of the marriage problems and in most cases many wives know their husbands are cheating so you don't know what sort of arrangement they have between them. If you say something she may already know and you will embarrass her or, she will most likely not believe you and you could open a whole can of worms and have her husband and herself come at you with a vengeance.
You re-evaluate your life, sounds like those kids are already on their way to being traumatised and without a solid family upbringing they're likely to repeat the same patterns and be incapable of trusting their mates.
If you and your husband are having financial difficulties and he wants you to try and get a job then it is more likely about finances and nothing to do with cheating. It is unlikely he suggested you get a job just so he could cheat because he has many excuses he could use to cheat without you working.
Statistically speaking, the answer to this question is most likely Yes
She is likely cheating on you!
Most likely in the same ways that you might know she was cheating with a man. It could even be less obvious, though, especially if she was cheating with one of her female friends.
Have your doctor give you your proper diagnosis and get treatment for your STD if that is what it is then confront your husband. He will likely try to deny it if it is true and possibly accuse you of cheating because you will say you have an STD (he should get checked asap too) but if you feel that you are truly being cheated on you should not put up with this treatment and make a decision that is in your best interest - think about it - he possibly gave you an STD are you going to wait around for HIV/AIDS...