Need advice....am i in an unhealthy relationship?

I am a divorced mom of 3 young children.....last year my boyfriend of 4 months moved in with me.....I am so in love with him. I love his personality, he his very attentive, we get along great, he is good to my kids, he is very pionate, and the is the best I ever had, The problem....money. He pays the rent and all utlities....which he was paying when he lived by himself....now he just pays it by me since he moved in. I was working part time and paying for my personal bills....cell phone, car insurance, visa and supporting my children. He hated that I worked....did not want to babysit my kids while I worked and wanted me to quit my job.....which I did. Now I am broke...I have mentioned to him that my cell phone bill is due, and he has yet to pay it for me....he is kinda cheap....tells me I spend to much money on my children....complains when I turn the heat up,,,,,,I realize the economy is bad and we all have to make cuts....but he is going overboard.......he does not even give me spending money....says he lives on 10.00 a week and that I should be able too......I have to keep going to my ex husband for money....my ex even paid my cell phone for me....and my boyfriend is even cheap when it comes to grocery shopping.....never having children himself....he does not understand what it costs to feed three children,,,,,,I try talking to him..I dont know what to do anymore....losing him will hurt me so much....