Too much of a mommas boy?

Hi ladies! I need some opinions/advice because I’m not sure if I’m overreacting. My boyfriend and I have been really good friends for the last 8 years but we never met in person because he lives a few states over. Last summer we agreed that after all this time he should come visit me before I started nursing school. Long story short we realized we weren’t just friends. After he flew back home he found out his mom got a job offer in my state and he decided he wanted to move with her to give himself a fresh start and I think to be closer to me. Where I live has a higher cost of living than where he lived so his mom told him that there needed to be an agreement where he helped out with bills which is totally fine. He was unemployed here for the first 2 months so any money he had saved up was spent. He’s 26 and I’m 22. I accidentally heard her tell him she was taking 700 dollars of his stimulus money to pay her bills and she expects him to buy their groceries. She’s a single mother in her mid 60’s and hasn’t kept a steady job so I feel like she relies on my boyfriend like she would a husband to help finance things. It’s going to be harder for him to move out because a 2 bedroom apartment can be costly and she can’t afford that on her own but he wouldn’t have anywhere else to live if it’s not with her. Another kicker to that is due to COVID my boyfriend got furloughed. A few weeks ago he was told he could come back and work but he doesn’t want to because he doesn’t want to put his mom at risk of exposure. Now she’s talking about moving to another state that’s below mine and my boyfriend said he would have to move with her to help her afford things. I feel like at 26 he should be saving up to get an apartment of his own and not do whatever his mom tells him. Am I overreacting?