How did you "notice" she had deleted it unless you checked? And if your going through her text messages, there are issues in the relationship entirely unrelated to other people.
You can't notice what's not there unless you look. Ergo, for him to know that the convo has been deleted, he would have to have searched through her messages looking for this guys contact, and found none.
If you were involved with someone, and they had recently told you that the person they work with has professed his love to them and was still going on... Theres "trust issues" and then theres being "a sucker". I think in his case he did what most intelligent ppl would of done.
Communication The only reason you have doubts is you "think" she deleted the convo with him. If you don't ask her, you will always assume that is what happened. You know what people say about assume? Ass/U/Me U make an Ass of Me Ask Ask Ask Don't let resentment cause a break up of a relationship that could potentially be forever. After you talk about it you will know if she is lying by her answers and reactions to your questions.
I'm going with this: He took a sugar bottle while drunk on Vodka and beat the guys face, he then went and threw the guy to North Kore, which is where he's at now, and is currently strapping him onto one of Kim Jungs Nukes that is aiming for Mexico, and will end the talk of a wall because this other guy was a trump supporter, and wanted to ruin everything he wanted. That or he quit KaW and is trying to settle things in an appropriate way.
She may have already said she was texting him, then when went to pass him the phone she swiped it, the red delete box is rather obvious.
Just ask her, tell her how you feel and if you dont like the result then you didnt know her like you think you did But if it was actually completely fine aside from the whole "i love you" thing just tell her to tell him not to talk to her unless she has to, there's nothing wrong with feeling angry or jealous about someone like that
Ask her about it, trust what she says. Part of being in a relationship is trusting what your partner says. There isn't enough evidence here to suggest she is cheating on you.
Something is going on, even if only in her head, but that's still not acceptable, I agree with Prime, sorry bud
People are liars though. we dont know op and his girl, so we dont even know if they have even earned each others trust yet. At least thats the way it works for me. i hear people fall back on the phrase "you dont trust me?" all the time. Oddly enough, they are normally right cause people you trust dont leave you feeling suspicious. People lie, plain and simple.