Does He Still Love Her?

I meet my current boyfriend Chris about a year ago, of course at that point in time he was sleeping with Anna, a coworker of mine. He had just moved to San Diego and didnt know anybody so he fell for her right away. anyways, They had a pretty rocky relationship, due to the fact that she was married and was still seeing somebody else other than Chris, so you can say there was a lot of cheating and fighting going on, but she as a kid which chris fell in love with and treated him like his own son so I guess they also had a lot of good times, so it was pretty much 50/50. She decided to go into the army and stay with her husband so she left Chris brokenhearted, I was there to console him as a friend but I learned that he loved her deeply and that she had hurt him really bad. Three months went by he hadnt heard from her, and we had kept going out and we started to fall for eachother and we were happy in our relationship and everything was going great, and then I learned that she had gotten hurt at bootcamp and was coming back, we talked about it and he promised me he was over her and that he cared for me and that this was not going to break us up. The first day she got back he broke up with me claiming that he needed to be alone cause he did not know what he wanted, so I gave him his space, not two days passed and when he came looking for me telling me he wanted me that he realized he loved me (he did not talk to her, he dicided that for himself I know that for a fact) anyways he begged me to take him back and I do love him so I did, so everything went back to being great as always, until she started looking for him, sayin that she missed his body and wanted him back, that she could never get enough of him, and he made it clear to her that he was with me now, so she said that it was fine as long as they kept being friends. I would be fine with the fact that they would want to remain friends cause she was her only friend when he moved here but not if shes sayin he wants to get back with him and since he turned her down then resinged to just being friends. I DONT TRUST HER.

And the thing that kill me is that he wants to keep talking to her, sayin that they are good friends. I checked his phone while he was taking a bath and found 2 txt messages of her asking about how our relationship is going and that shes happy for us. but I also checked whos callin who, and appearantly the one doing the calin is my boyfriend…what can I do?? does it means he still loves her??? I really love him a lot I do not want to lose him, but im positive that if they keep being friends sooner or later they will end up sleeping together cause I know how much he loved her and I know he still cares, and I could never forgive an infidelity, how do I get this person away from us for good. PLEASE HELP