insecurity

I'm fostering a boston terrier/pitbull mix who I would consider mildly dog reactive. From my observation, it seems to come more from insecurity. It's usually when first meeting a new dog, she prefers to avoid/ignore them. She'll tolerate some sniffing, but is visibly uncomfortable. And once...

I brought a new older male home and couple of weeks ago and now my first male seems to want to be in my lap or under foot or next to me or pawing at me all the time. What is this regresssion or insecurity? The new male is 2 and twice the size of my 1 year old first male. i am assuming my 1...