Needs some advice

My husband and I have been married for almost 3 years, have a 14 months old. Well lately he’s been talking to more girls than usual (he talks to a lot on a normal). Well I found his phone this morning and was curious, he’s my husband I can look at what I want, well he was talking to a ‘friend’ and said a pick up line ‘I’d say you’re beautiful but beauty is on the inside and I haven’t been inside of you yet’ and then asked her if it worked with some wonky faces. Do people not think that flirting is cheating? Wtf do I even say. The inner me is an evil bitch so I won’t say anything.