Not sure what to do...

So my husband and I have been on a rocky path lately. I don't feel any chemistry and I feel like it could be over between us. He says he feels otherwise but his actions don't make me feel like he genuinely loves me. We've been going to counseling and it's been discovered that he's mistaken independence for love. We were very young when we got married and started having kids, and I kinda helped mold him into who he is today. Now that we're older I feel like we've just matured and grown apart as individuals. It's not attractive to me that I have to be his mentor, teacher, mom and tell him how to love me - it's just not something that can be taught. This has been going on for pretty much our whole marriage. I've recently reconnected with a guy from high school who gives me that "butterfly" feeling and I find myself thinking about him all the time. I've been trying to stay focused on seeing if this marriage is worth it, but everyday my husband doesn't give me what I need makes it hard. We're both 27/28 years old and only have sex like 2x a month! That's insane! I can't stay for the kids and I deserve to be happy...just not sure what to do? Is it okay to leave after 7 years and kids??