Is pathological lying a reason for divorce?

I've caught my husband in soooooo many lies. Big and small. I've told him that I can deal with ANYTHING he throws at me, except for lying because if I can't trust him, then what is the point of continuing our relationship? We have a child together and I do love him but it's gotten to the point that I don't believe a word coming out of his mouth anymore about even the smallest things and it's driving us both crazy because I'm constantly questioning him about everything. I hate always feeling on edge and unsure about anything he tells me. I don't know how to trust him anymore and I feel like if I can't trust my own husband, who can I trust? It's slowly driving me crazy and has driven me into a depression that's just getting worse. Please help