Marriage advice

Hii Ladiess im very much new to Glow and very much new to married life. Yes im a newly wed .. But i need advice ladies. So my husband and i constantly argue lately because everything we do .. He includes his baby mother .. Not the kids but his baby mother. We got into this huge arguement and he yelled in my face to tell me she was way better than me .. And she has been buying him clothes and sneakers and a phone .. Now he hasnt been home for 5 days .. Its making me very emotional because i never went thru this and now im going thru this while married . im not sure what to think or do so can i get some advice or knowledge ladies .. Thank u