Worried that 14mth old is exhibiting anger issues?

There is a lot of change taking place in his life, so that could be contributing to his actions. He is only 15 months, so his ways of communicating frustration are very limited, but may come out as fussiness, throwing toys, etc. I would recommend that you keep his daily routine as stable as possible, i.e. eating, naps, bath, story time and bedtime at the same time every day. Reinforce his good behavior with hugs, kisses and praise, and let this phase run its course. It will be very important that you maintain this approach no matter what is going on; new baby, custody battle, new husband, etc. If he feels stable and loved by the adults in his life (this includes the new guy, by the way), then this behavior will start to get less and less, and eventually go away.