overly sensitive or no

my childs father also my boyfriend we’re going on 2 years . am I just pregnant and emotional but lately i’ve noticed he only wants to touch and rub and spend time with me when his phone is dead . or he wont pick his phone up around nobody else or even think about it unless he’s with me . now when I address it nicely like “how come you only want to bond with me when your phone is dead” or “how come you can be around anyone else and not be on your phone but with me its glued to your hand” he gets annoyed and sarcastically puts it down or just have an attitude with me . Am I being too sensitive or should I just let it go?