Am I overreacting?

My so and I have a 10 month old and another one due in 3 weeks so idk if it’s my pregnancy hormones getting to me but seems like every night he goes over to this lady I used to work with house to work on her yard for a bike he’s trying to get from her .. he goes every day after work and it’s getting to the point of driving me crazy being tired all the time feeling like I’m doing all of this by myself.. and when he comes home I do is laundry and cook dinner and put our daughter to sleep when he’s just on his phone texting her about what can be done.. I’m just so annoyed ...

Edit : she’s 70 something it’s his nephews grandma . It was her deceased husbands bike who passed away last year.