Am I going crazy or do I just need to chill out?

My boyfriend really doesn’t spend anytime with me anymore like he use to in the beginning. he goes out with his friends and family he will just come get our 6 month son and just leave me at home. when he’s not working he wants to go out on weekends without me it’s been happening for awhile now and Im ready to just call it quits. it’s been two years now for us and I just mentioned to him about me wanting to start my own business he doesn’t say anything but he just went to the game room and spent over 2,000.
Am I going crazy or do I just need to chill out?
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