Toughest decision is knowing whether to walk away or try harder..

I love my boyfriend a lot but I'm not happy at all and I tell him this! He's not the man I thought he was. There's no adventure with him, he's boring and home bodied. I'm not. He does things and says things that make me upset and brings out my anxiety. I express my feelings to him, I CRY IN FRONT OF HIM, I tell him when he makes me mad and I tell him why he made me feel like that. So he knows. I mentioned counseling and he says "we can't afford that" or "sounds expensive".

The hardest part is that when I do try to leave, cause I thought about it in the past before I got pregnant, he starts acting real nice to me. Cuddles with me. Kisses me, says he loves me... and then I think okay maybe it was just a bad week not a bad life. But then it goes right back to normal. He has his random moments of kind and gentleness but mostly it's like walking in a dull environment around him. I really don't know what to do. Try harder? Give up? Idk.