Is he cheating ?

My bf told me to cash app myself however much I wanted for lunch before he headed off to work yesterday so I sent myself 20$ . Well while I was on his cash app I seen that a girl he been sending money too often and I’m not talking about 5-10$ I’m talking 50-200$ 12 times over the past 8 months . So I ask him who’s this and he’s like oh tarah? She’s a coworker. I’m like ok why you sending her money and he’s like she’s also “the plug” . I’m like ok . He goes to work comes home . Ate dinner around 7. Says he’s going to his friends house 7:45. His buddies come over 10pm looking for him saying he never showed . I’m thinking the worse . So I’m blowing up his phone calling hospitals and stuff . His friends went to look for him And something told me to call this tarah chick and ask her if she’s seen my man . She said he was over there earlier but isn’t anymore I said ok and asked her if they are also messing around and she replied “don’t ask no stupid questions” then hung up in my face .

My bf came home 2am in the morning . High.

Claiming he went to get weed from tarah on his way to his friends house and his phone died . He charged it at tarah house for 30 min then linked up with his friends . While he was half out of it I asked him what he sends money to her for and he said weed and sometimes pays her bills then he dosed off .

Sooooo he’s screwing her or am I doing too much cuz he’s not just paying a coworker bills cuz he’s nice 😒