Married but struggling...

So I'm married. We've been together going on 6 years. Will be married 2 years this October.
We've had a rough time, because of financial and health reasons (I won't go into detail). Things are okay now health wise.
My husband has a bit of a spending problem, always buying things here and there that we don't need and usually don't need to spend the money on, but he does it all the time. Anyways...even besides that, he tends to be emotionally distant. And I'm having a hard time dealing with that...
He does have anxiety and ADD, but I feel like he tends to use it more of an excuse instead of trying to do better.  Mainly because whenever we talk about it, that's pretty much all he says is that he "can't" or something to that effect because of it.
Anyways...I've been having a really rough time lately. I've tried talking to my husband, but I don't think he really understands...even though I've tried to tell him and explain... I'm still trying though, but it's hard, and it's caused depression flare ups as well...
Then there is a friend that I met through work. (I'm pretty sure you already know where this is going but hear me out.)
He is super fun and just has an awesome personality. He's had his share of emotional struggles as well which is the main reason that we connected. Then we find that the way we look at and feel about certain things are pretty much the same too. So of corse we've become kind of close.
My issue is that I've honestly never felt a connection quite like this with anyone before... Plus, I can see his mind is always on..he pays attention to everything and always picks up on literally everything. He can immediately tell if I'm in a bad mood or not happy about something.  And if he asks me about it and I tell him I'm fine, he makes it known that he knows I'm lying.
He's respectful and caring. Always makes a point to talk to me and check how I'm doing. He's literally awesome, even though he doesn't think so.
So, we've been texting/talking a lot. Like I said we've gotten pretty close. I definitely consider him a very good friend. Note: he is in a relationship too, and is obviously committed to not messing it up.
The issue is, yes I find him attractive, and I know he finds me attractive because he has said so.  It's hard for me because of this connection I feel with him. I've NEVER had that with anyone. And he is always so kind and attentive, always wanting to make sure I'm okay.  And I just feel SO comfortable/natural with him, which is not normal for me either.
So I guess I'm just wondering what you guys thoughts are on this situation.
Please no hate, I'm already stressed enough with everything, and I already know this situation is not ideal.
Thanks in advance!